diff --git a/ui/accounts_editor.ui b/ui/accounts_editor.ui
index 04581e8d..dcd4f42f 100644
--- a/ui/accounts_editor.ui
+++ b/ui/accounts_editor.ui
@@ -3,7 +3,6 @@
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <template class="AccountsEditor" parent="GtkDialog">
-    <property name="can_focus">False</property>
     <property name="modal">True</property>
     <property name="default_width">360</property>
     <property name="default_height">450</property>
@@ -13,11 +12,9 @@
     </child>
     <child internal-child="vbox">
       <object class="GtkBox">
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child internal-child="action_area">
           <object class="GtkButtonBox">
-            <property name="can_focus">False</property>
             <property name="layout_style">end</property>
             <child>
               <placeholder/>
@@ -35,11 +32,9 @@
         <child>
           <object class="GtkOverlay" id="notifications_pane">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="GtkStack" id="editor_panes">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="transition_type">slide-left-right</property>
                 <signal name="notify::visible-child" handler="on_pane_changed" swapped="no"/>
                 <child>
diff --git a/ui/accounts_editor_add_pane.ui b/ui/accounts_editor_add_pane.ui
index 5ca519fb..cfe25902 100644
--- a/ui/accounts_editor_add_pane.ui
+++ b/ui/accounts_editor_add_pane.ui
@@ -4,23 +4,19 @@
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkHeaderBar" id="header">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="title" translatable="yes">Add an account</property>
     <property name="has_subtitle">False</property>
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="back_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <signal name="clicked" handler="on_back_button_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="no_show_all">True</property>
                 <property name="icon_name">go-previous-symbolic</property>
               </object>
@@ -36,12 +32,10 @@
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="column_spacing">12</property>
         <child>
           <object class="GtkSpinner" id="create_spinner">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
           </object>
           <packing>
             <property name="left_attach">0</property>
@@ -53,7 +47,6 @@
             <property name="label" translatable="yes">_Create</property>
             <property name="visible">True</property>
             <property name="sensitive">False</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="use_underline">True</property>
             <signal name="clicked" handler="on_create_button_clicked" swapped="no"/>
@@ -80,11 +73,9 @@
   </object>
   <template class="AccountsEditorAddPane" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkScrolledWindow">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="hexpand">True</property>
         <property name="vexpand">True</property>
         <property name="vadjustment">pane_adjustment</property>
@@ -92,27 +83,22 @@
         <child>
           <object class="GtkViewport">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="shadow_type">none</property>
             <child>
               <object class="HdyClamp">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin">24</property>
                 <child>
                   <object class="GtkGrid" id="pane_content">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="details_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                           </object>
@@ -126,11 +112,9 @@
                     <child>
                       <object class="GtkGrid" id="receiving_panel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkLabel">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="halign">start</property>
                             <property name="label" translatable="yes">Receiving</property>
                             <attributes>
@@ -148,13 +132,11 @@
                         <child>
                           <object class="GtkFrame">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="label_xalign">0</property>
                             <property name="shadow_type">in</property>
                             <child>
                               <object class="GtkListBox" id="receiving_list">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="selection_mode">none</property>
                                 <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                               </object>
@@ -174,11 +156,9 @@
                     <child>
                       <object class="GtkGrid" id="sending_panel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkLabel">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="halign">start</property>
                             <property name="label" translatable="yes">Sending</property>
                             <attributes>
@@ -196,13 +176,11 @@
                         <child>
                           <object class="GtkFrame">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="label_xalign">0</property>
                             <property name="shadow_type">in</property>
                             <child>
                               <object class="GtkListBox" id="sending_list">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="selection_mode">none</property>
                                 <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                               </object>
diff --git a/ui/accounts_editor_edit_pane.ui b/ui/accounts_editor_edit_pane.ui
index ce9bcb9a..98fd40ef 100644
--- a/ui/accounts_editor_edit_pane.ui
+++ b/ui/accounts_editor_edit_pane.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkHeaderBar" id="header">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="title" translatable="yes">Edit Account</property>
     <property name="subtitle" translatable="yes">Account Name</property>
     <property name="has_subtitle">False</property>
@@ -12,17 +11,14 @@
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="back_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <signal name="clicked" handler="on_back_button_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="no_show_all">True</property>
                 <property name="icon_name">go-previous-symbolic</property>
               </object>
@@ -38,17 +34,14 @@
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="undo_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="action_name">edt.undo</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="no_show_all">True</property>
                 <property name="icon_name">edit-undo-symbolic</property>
               </object>
@@ -73,11 +66,9 @@
   </object>
   <template class="AccountsEditorEditPane" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkScrolledWindow">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="hexpand">True</property>
         <property name="vexpand">True</property>
         <property name="vadjustment">pane_adjustment</property>
@@ -86,27 +77,22 @@
         <child>
           <object class="GtkViewport">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="HdyClamp">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin">24</property>
                 <child>
                   <object class="GtkGrid" id="pane_content">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="details_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_setting_activated" swapped="no"/>
@@ -124,7 +110,6 @@
                     <child>
                       <object class="GtkLabel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="label" translatable="yes">Email addresses</property>
                         <style>
@@ -139,14 +124,12 @@
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="senders_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_setting_activated" swapped="no"/>
@@ -164,7 +147,6 @@
                     <child>
                       <object class="GtkLabel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="label" translatable="yes">Signature</property>
                         <style>
@@ -179,7 +161,6 @@
                     <child>
                       <object class="GtkFrame" id="signature_frame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
@@ -201,7 +182,6 @@
                     <child>
                       <object class="GtkLabel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="label" translatable="yes">Settings</property>
                         <style>
@@ -216,14 +196,12 @@
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="settings_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_setting_activated" swapped="no"/>
@@ -241,13 +219,11 @@
                     <child>
                       <object class="GtkButtonBox">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="layout_style">end</property>
                         <child>
                           <object class="GtkButton">
                             <property name="label" translatable="yes" comments="This is a button in the account settings to show server settings.">Server Settings</property>
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="receives_default">False</property>
                             <signal name="clicked" handler="on_server_settings_clicked" swapped="no"/>
                           </object>
@@ -262,7 +238,6 @@
                           <object class="GtkButton" id="remove_button">
                             <property name="label" translatable="yes" comments="This is the remove account button in the account settings.">Remove Account</property>
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Remove this account from Geary</property>
                             <signal name="clicked" handler="on_remove_account_clicked" swapped="no"/>
diff --git a/ui/accounts_editor_list_pane.ui b/ui/accounts_editor_list_pane.ui
index 53cc716f..2f5e6af2 100644
--- a/ui/accounts_editor_list_pane.ui
+++ b/ui/accounts_editor_list_pane.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkHeaderBar" id="header">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="title" translatable="yes">Accounts</property>
     <property name="has_subtitle">False</property>
     <property name="show_close_button">True</property>
@@ -16,11 +15,9 @@
   </object>
   <template class="AccountsEditorListPane" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkScrolledWindow">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="hexpand">True</property>
         <property name="vexpand">True</property>
         <property name="vadjustment">pane_adjustment</property>
@@ -29,26 +26,21 @@
         <child>
           <object class="GtkViewport">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="HdyClamp">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin">24</property>
                 <child>
                   <object class="GtkGrid" id="pane_content">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <child>
                       <object class="GtkGrid" id="welcome_panel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">center</property>
                         <property name="column_spacing">12</property>
                         <child>
                           <object class="GtkImage" id="welcome_icon">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="pixel_size">64</property>
                             <property name="use_fallback">True</property>
                           </object>
@@ -61,7 +53,6 @@
                         <child>
                           <object class="GtkLabel">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="halign">start</property>
                             <property name="valign">start</property>
                             <property name="wrap">True</property>
@@ -77,7 +68,6 @@
                         <child>
                           <object class="GtkLabel">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="halign">start</property>
                             <property name="valign">end</property>
                             <property name="label" translatable="yes">Welcome to Geary</property>
@@ -104,7 +94,6 @@
                     <child>
                       <object class="GtkFrame" id="accounts_list_frame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="valign">start</property>
                         <property name="hexpand">True</property>
                         <property name="vexpand">True</property>
@@ -113,7 +102,6 @@
                         <child>
                           <object class="GtkListBox" id="accounts_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_row_activated" swapped="no"/>
@@ -130,7 +118,6 @@
                     <child>
                       <object class="GtkLabel" id="add_service_label">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="label" translatable="yes">Add an account</property>
                         <attributes>
@@ -148,7 +135,6 @@
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="valign">start</property>
                         <property name="hexpand">True</property>
                         <property name="vexpand">True</property>
@@ -158,7 +144,6 @@
                           <object class="GtkListBox" id="service_list">
                             <property name="width_request">0</property>
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="valign">start</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
diff --git a/ui/accounts_editor_servers_pane.ui b/ui/accounts_editor_servers_pane.ui
index 77ba674e..620103b6 100644
--- a/ui/accounts_editor_servers_pane.ui
+++ b/ui/accounts_editor_servers_pane.ui
@@ -4,19 +4,16 @@
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkHeaderBar" id="header">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="title" translatable="yes">Server Settings</property>
     <property name="subtitle" translatable="yes">Account Name</property>
     <property name="show_close_button">False</property>
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="cancel_button">
             <property name="label" translatable="yes">Cancel</property>
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <signal name="clicked" handler="on_cancel_button_clicked" swapped="no"/>
           </object>
@@ -30,12 +27,10 @@
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="column_spacing">12</property>
         <child>
           <object class="GtkSpinner" id="apply_spinner">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
           </object>
           <packing>
             <property name="left_attach">0</property>
@@ -47,7 +42,6 @@
             <property name="label" translatable="yes">Apply</property>
             <property name="visible">True</property>
             <property name="sensitive">False</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <signal name="clicked" handler="on_apply_button_clicked" swapped="no"/>
             <style>
@@ -74,11 +68,9 @@
   <template class="AccountsEditorServersPane" parent="GtkGrid">
     <property name="name">1</property>
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkScrolledWindow">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="hexpand">True</property>
         <property name="vexpand">True</property>
         <property name="vadjustment">pane_adjustment</property>
@@ -87,27 +79,22 @@
         <child>
           <object class="GtkViewport">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="HdyClamp">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin">24</property>
                 <child>
                   <object class="GtkGrid" id="pane_content">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="receiving_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_activate" swapped="no"/>
@@ -124,7 +111,6 @@
                     <child>
                       <object class="GtkLabel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="label" translatable="yes">Receiving</property>
                         <style>
@@ -139,14 +125,12 @@
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="sending_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_activate" swapped="no"/>
@@ -163,7 +147,6 @@
                     <child>
                       <object class="GtkLabel">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="label" translatable="yes">Sending</property>
                         <style>
@@ -178,14 +161,12 @@
                     <child>
                       <object class="GtkFrame">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="label_xalign">0</property>
                         <property name="shadow_type">in</property>
                         <child>
                           <object class="GtkListBox" id="details_list">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="selection_mode">none</property>
                             <signal name="keynav-failed" handler="on_list_keynav_failed" swapped="no"/>
                             <signal name="row-activated" handler="on_activate" swapped="no"/>
diff --git a/ui/application-main-window.ui b/ui/application-main-window.ui
index f3c01475..ffef5930 100644
--- a/ui/application-main-window.ui
+++ b/ui/application-main-window.ui
@@ -3,7 +3,6 @@
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <template class="ApplicationMainWindow" parent="GtkApplicationWindow">
-    <property name="can_focus">False</property>
     <property name="events">GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_FOCUS_CHANGE_MASK | GDK_STRUCTURE_MASK</property>
     <property name="show_menubar">False</property>
     <signal name="delete-event" handler="on_delete_event" swapped="no"/>
@@ -17,16 +16,13 @@
     <child>
       <object class="GtkOverlay" id="overlay">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkBox" id="main_layout">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
             <child>
               <object class="HdyLeaflet" id="main_leaflet">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="can_swipe_back">True</property>
                 <property name="transition_type">over</property>
                 <signal name="notify::visible-child" handler="on_main_leaflet_visible_child_changed" swapped="no"/>
@@ -34,26 +30,22 @@
                 <child>
                   <object class="HdyLeaflet" id="conversations_leaflet">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="hexpand_set">True</property>
                     <property name="can_swipe_back">True</property>
                     <property name="transition_type">over</property>
                     <child>
                       <object class="GtkBox" id="folder_box">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="orientation">vertical</property>
                         <child>
                           <object class="GtkFrame" id="folder_frame">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="vexpand">True</property>
                             <property name="label_xalign">0</property>
                             <property name="shadow_type">none</property>
                             <child>
                               <object class="GtkScrolledWindow" id="folder_list_scrolled">
                                 <property name="visible">True</property>
-                                <property name="can_focus">True</property>
                                 <property name="hscrollbar_policy">never</property>
                               </object>
                             </child>
@@ -74,7 +66,6 @@
                     <child>
                       <object class="GtkSeparator" id="folder_separator">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="orientation">vertical</property>
                         <style>
                           <class name="sidebar"/>
@@ -87,19 +78,16 @@
                     <child>
                       <object class="GtkBox" id="conversation_list_box">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="orientation">vertical</property>
                         <child>
                           <object class="GtkFrame" id="conversation_frame">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="label_xalign">0</property>
                             <property name="shadow_type">none</property>
                             <child>
                               <object class="GtkScrolledWindow" id="conversation_list_scrolled">
                                 <property name="width_request">250</property>
                                 <property name="visible">True</property>
-                                <property name="can_focus">True</property>
                               </object>
                             </child>
                             <style>
@@ -126,7 +114,6 @@
                 <child>
                   <object class="GtkSeparator" id="conversations_separator">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="orientation">vertical</property>
                     <style>
                       <class name="geary-sidebar-pane-separator"/>
@@ -139,7 +126,6 @@
                 <child>
                   <object class="GtkBox" id="conversation_viewer_box">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="orientation">vertical</property>
                     <child>
                       <object class="ComponentsConversationActionBar" id="conversation_viewer_action_bar">
diff --git a/ui/certificate_warning_dialog.glade b/ui/certificate_warning_dialog.glade
index 252e319c..3ac014d1 100644
--- a/ui/certificate_warning_dialog.glade
+++ b/ui/certificate_warning_dialog.glade
@@ -3,7 +3,6 @@
 <interface>
   <requires lib="gtk+" version="3.14"/>
   <object class="GtkDialog" id="CertificateWarningDialog">
-    <property name="can_focus">False</property>
     <property name="title" translatable="yes">Untrusted Connection</property>
     <property name="modal">True</property>
     <property name="destroy_with_parent">True</property>
@@ -11,7 +10,6 @@
     <property name="urgency_hint">True</property>
     <child internal-child="vbox">
       <object class="GtkBox" id="dialog-vbox1">
-        <property name="can_focus">False</property>
         <property name="margin_start">12</property>
         <property name="margin_end">12</property>
         <property name="margin_top">12</property>
@@ -20,7 +18,6 @@
         <property name="spacing">2</property>
         <child internal-child="action_area">
           <object class="GtkButtonBox" id="dialog-action_area1">
-            <property name="can_focus">False</property>
             <property name="valign">end</property>
             <property name="margin_top">8</property>
             <property name="layout_style">end</property>
@@ -28,7 +25,6 @@
               <object class="GtkButton" id="always_trust_button">
                 <property name="label" translatable="yes">_Always Trust This Server</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="use_underline">True</property>
               </object>
@@ -42,7 +38,6 @@
               <object class="GtkButton" id="trust_button">
                 <property name="label" translatable="yes">_Trust This Server</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="use_underline">True</property>
               </object>
@@ -56,7 +51,6 @@
               <object class="GtkButton" id="dont_trust_button">
                 <property name="label" translatable="yes">_Don’t Trust This Server</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="use_underline">True</property>
               </object>
@@ -77,18 +71,15 @@
         <child>
           <object class="GtkBox" id="box1">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
             <property name="spacing">8</property>
             <child>
               <object class="GtkBox" id="box2">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="spacing">6</property>
                 <child>
                   <object class="GtkImage" id="image1">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="icon_name">security-high-symbolic</property>
                     <property name="icon_size">6</property>
                   </object>
@@ -101,7 +92,6 @@
                 <child>
                   <object class="GtkLabel" id="untrusted_connection_label">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label">(empty)</property>
                     <attributes>
                       <attribute name="weight" value="bold"/>
@@ -123,7 +113,6 @@
             <child>
               <object class="GtkLabel" id="top_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin_top">8</property>
                 <property name="xalign">0</property>
                 <property name="label">(empty)</property>
@@ -138,7 +127,6 @@
             <child>
               <object class="GtkLabel" id="warnings_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin_start">16</property>
                 <property name="xalign">0</property>
                 <property name="label">(empty)</property>
@@ -154,7 +142,6 @@
             <child>
               <object class="GtkLabel" id="contact_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="xalign">0</property>
                 <property name="label">(empty)</property>
                 <property name="wrap">True</property>
@@ -169,7 +156,6 @@
             <child>
               <object class="GtkLabel" id="dont_trust_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="valign">end</property>
                 <property name="xalign">0</property>
                 <property name="label">(empty)</property>
@@ -186,7 +172,6 @@
             <child>
               <object class="GtkLabel" id="trust_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="xalign">0</property>
                 <property name="label">(empty)</property>
                 <property name="wrap">True</property>
diff --git a/ui/components-attachment-pane.ui b/ui/components-attachment-pane.ui
index 206ac3ce..16eb5596 100644
--- a/ui/components-attachment-pane.ui
+++ b/ui/components-attachment-pane.ui
@@ -5,12 +5,10 @@
   <template class="ComponentsAttachmentPane" parent="GtkGrid">
     <property name="name">box</property>
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="orientation">vertical</property>
     <child>
       <object class="GtkSeparator">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
       </object>
       <packing>
         <property name="left_attach">0</property>
@@ -20,18 +18,15 @@
     <child>
       <object class="GtkActionBar" id="attachments_actions">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="select_all_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Select all attachments</property>
             <property name="action_name">cap.select-all</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">edit-select-all-symbolic</property>
               </object>
             </child>
@@ -42,14 +37,12 @@
         </child>
         <child>
           <object class="GtkButton" id="remove_button">
-            <property name="can_focus">True</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Select all attachments</property>
             <property name="action_name">cap.remove-selected</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">list-remove-symbolic</property>
               </object>
             </child>
@@ -61,14 +54,12 @@
         <child>
           <object class="GtkButton" id="save_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Save selected attachments</property>
             <property name="action_name">cap.save-selected</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">document-save-symbolic</property>
               </object>
             </child>
@@ -80,14 +71,12 @@
         <child>
           <object class="GtkButton" id="open_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Open selected attachments</property>
             <property name="action_name">cap.open-selected</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">document-open-symbolic</property>
               </object>
             </child>
@@ -108,7 +97,6 @@
     <child>
       <object class="GtkGrid" id="attachments_container">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <placeholder/>
diff --git a/ui/components-attachment-view.ui b/ui/components-attachment-view.ui
index 85257235..c5e79a6a 100644
--- a/ui/components-attachment-view.ui
+++ b/ui/components-attachment-view.ui
@@ -4,12 +4,10 @@
   <requires lib="gtk+" version="3.14"/>
   <template class="ComponentsAttachmentPaneView" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="column_spacing">6</property>
     <child>
       <object class="GtkImage" id="icon">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="valign">center</property>
         <property name="vexpand">True</property>
         <property name="pixel_size">32</property>
@@ -24,7 +22,6 @@
     <child>
       <object class="GtkLabel" id="filename">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="valign">end</property>
         <property name="label">filename.ext</property>
         <property name="ellipsize">middle</property>
@@ -38,7 +35,6 @@
     <child>
       <object class="GtkLabel" id="description">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="valign">start</property>
         <property name="label">type (size)</property>
         <property name="xalign">0</property>
diff --git a/ui/components-conversation-action-bar.ui b/ui/components-conversation-action-bar.ui
index 6fc03f44..74daca48 100644
--- a/ui/components-conversation-action-bar.ui
+++ b/ui/components-conversation-action-bar.ui
@@ -3,29 +3,24 @@
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkImage" id="archive_image">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="icon_name">mail-archive-symbolic</property>
   </object>
   <template class="ComponentsConversationActionBar" parent="GtkRevealer">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="transition_type">slide-up</property>
     <child>
       <object class="GtkBox">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="hexpand">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkSeparator">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
           </object>
         </child>
         <child>
           <object class="GtkBox" id="action_box">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="hexpand">True</property>
             <property name="margin_top">6</property>
             <property name="margin_bottom">6</property>
diff --git a/ui/components-conversation-actions.ui b/ui/components-conversation-actions.ui
index b554deda..f1423bdf 100644
--- a/ui/components-conversation-actions.ui
+++ b/ui/components-conversation-actions.ui
@@ -4,18 +4,15 @@
     <requires lib="gtk+" version="3.20"/>
     <object class="GtkBox" id="mark_copy_move_buttons">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
             <object class="GtkMenuButton" id="mark_message_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="always_show_image">True</property>
                 <child>
                     <object class="GtkImage" id="mark_message_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">marker-symbolic</property>
                     </object>
                 </child>
@@ -29,14 +26,12 @@
         <child>
             <object class="GtkMenuButton" id="copy_message_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="always_show_image">True</property>
                 <child>
                     <object class="GtkImage" id="copy_message_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">tag-symbolic</property>
                     </object>
                 </child>
@@ -50,14 +45,12 @@
         <child>
             <object class="GtkMenuButton" id="move_message_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="always_show_image">True</property>
                 <child>
                     <object class="GtkImage" id="move_message_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">folder-symbolic</property>
                     </object>
                 </child>
@@ -75,11 +68,9 @@
     </object>
     <object class="GtkBox" id="reply_forward_buttons">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
             <object class="GtkButton" id="reply_sender_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes">Reply</property>
@@ -88,7 +79,6 @@
                 <child>
                     <object class="GtkImage" id="reply_sender_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">mail-reply-sender-symbolic</property>
                     </object>
                 </child>
@@ -102,7 +92,6 @@
         <child>
             <object class="GtkButton" id="reply_all_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes">Reply All</property>
@@ -111,7 +100,6 @@
                 <child>
                     <object class="GtkImage" id="reply_all_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">mail-reply-all-symbolic</property>
                     </object>
                 </child>
@@ -125,7 +113,6 @@
         <child>
             <object class="GtkButton" id="forward_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes">Forward</property>
@@ -134,7 +121,6 @@
                 <child>
                     <object class="GtkImage" id="forward_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">mail-forward-symbolic</property>
                     </object>
                 </child>
@@ -152,17 +138,14 @@
     </object>
     <object class="GtkImage" id="archive_image">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="icon_name">mail-archive-symbolic</property>
     </object>
     <object class="GtkBox" id="archive_trash_delete_buttons">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
             <object class="GtkButton" id="archive_button">
                 <property name="label" translatable="yes">_Archive</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="action_name">win.archive-conversation</property>
@@ -179,7 +162,6 @@
         <child>
             <object class="GtkButton" id="trash_delete_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="action_name">win.trash-conversation</property>
@@ -187,7 +169,6 @@
                 <child>
                     <object class="GtkImage" id="trash_delete_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">user-trash-symbolic</property>
                     </object>
                 </child>
@@ -205,7 +186,6 @@
     </object>
     <object class="GtkToggleButton" id="find_button">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="focus_on_click">False</property>
         <property name="receives_default">False</property>
         <property name="tooltip_text" translatable="yes">Toggle find bar</property>
@@ -213,7 +193,6 @@
         <child>
             <object class="GtkImage" id="find_image">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">preferences-system-search-symbolic</property>
             </object>
         </child>
diff --git a/ui/components-conversation-header-bar.ui b/ui/components-conversation-header-bar.ui
index 1677c72a..1cb7a822 100644
--- a/ui/components-conversation-header-bar.ui
+++ b/ui/components-conversation-header-bar.ui
@@ -3,12 +3,10 @@
   <requires lib="gtk+" version="3.20"/>
   <template class="ComponentsConversationHeaderBar" parent="GtkHeaderBar">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="hexpand">True</property>
     <signal name="notify::parent" handler="update_action_bar" swapped="no"/>
     <child>
       <object class="GtkButton" id="conversation_back">
-        <property name="can_focus">False</property>
         <property name="receives_default">False</property>
         <property name="valign">center</property>
         <property name="use-underline">True</property>
@@ -25,7 +23,6 @@
         <child>
           <object class="GtkImage" id="conversation_back_image">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="icon_name">go-previous-symbolic</property>
             <property name="icon_size">1</property>
           </object>
diff --git a/ui/components-in-app-notification.ui b/ui/components-in-app-notification.ui
index adbb3e2f..a355074d 100644
--- a/ui/components-in-app-notification.ui
+++ b/ui/components-in-app-notification.ui
@@ -25,14 +25,12 @@
         <child>
           <object class="GtkButton" id="action_button">
             <property name="visible">False</property>
-            <property name="can_focus">False</property>
             <property name="valign">center</property>
           </object>
         </child>
         <child>
           <object class="GtkButton" id="close_button">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="valign">center</property>
             <signal name="clicked" handler="close" swapped="no"/>
             <style>
@@ -41,7 +39,6 @@
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">window-close-symbolic</property>
               </object>
             </child>
diff --git a/ui/components-info-bar.ui b/ui/components-info-bar.ui
index 11dcfe37..13cd0868 100644
--- a/ui/components-info-bar.ui
+++ b/ui/components-info-bar.ui
@@ -3,20 +3,16 @@
   <requires lib="gtk+" version="3.20"/>
   <template class="ComponentsInfoBar" parent="GtkBox">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkRevealer" id="revealer">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="transition_type">slide-down</property>
         <child>
           <object class="GtkBox">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="GtkFlowBox">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="hexpand">True</property>
                 <property name="selection-mode">none</property>
                 <property name="max_children_per_line">2</property>
@@ -24,11 +20,9 @@
                 <child>
                   <object class="GtkFlowBoxChild">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <child>
                       <object class="GtkBox" id="content_area">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="spacing">16</property>
                       </object>
                     </child>
@@ -37,11 +31,9 @@
                 <child>
                   <object class="GtkFlowBoxChild">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <child>
                       <object class="GtkButtonBox" id="action_area">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="layout_style">end</property>
                         <property name="spacing">6</property>
                       </object>
@@ -52,7 +44,6 @@
             </child>
             <child>
               <object class="GtkButton" id="close_button">
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="halign">end</property>
                 <property name="valign">center</property>
@@ -66,7 +57,6 @@
                 <child>
                   <object class="GtkImage">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="icon_name">window-close-symbolic</property>
                   </object>
                 </child>
diff --git a/ui/components-inspector-error-view.ui b/ui/components-inspector-error-view.ui
index 78df053e..f9d48c9e 100644
--- a/ui/components-inspector-error-view.ui
+++ b/ui/components-inspector-error-view.ui
@@ -5,11 +5,9 @@
   <requires lib="libhandy" version="0.0"/>
   <template class="ComponentsInspectorErrorView" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="HdyClamp">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="margin_left">16</property>
         <property name="margin_right">16</property>
         <property name="margin_top">32</property>
@@ -17,13 +15,11 @@
         <child>
           <object class="GtkGrid">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="row_spacing">6</property>
             <property name="column_spacing">12</property>
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="halign">start</property>
                 <property name="valign">baseline</property>
                 <property name="margin_bottom">12</property>
@@ -41,7 +37,6 @@
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="halign">start</property>
                 <property name="valign">baseline</property>
                 <property name="label" translatable="yes">Details:</property>
@@ -55,14 +50,12 @@
             <child>
               <object class="GtkScrolledWindow">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="hexpand">True</property>
                 <property name="vexpand">True</property>
                 <property name="shadow_type">in</property>
                 <child>
                   <object class="GtkTextView" id="problem_text">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="hexpand">True</property>
                     <property name="vexpand">True</property>
                     <property name="editable">False</property>
diff --git a/ui/components-inspector-log-view.ui b/ui/components-inspector-log-view.ui
index 2277fcff..48ba5d93 100644
--- a/ui/components-inspector-log-view.ui
+++ b/ui/components-inspector-log-view.ui
@@ -5,17 +5,14 @@
   <requires lib="libhandy" version="0.0"/>
   <template class="ComponentsInspectorLogView" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="HdySearchBar" id="search_bar">
         <property name="name">search_bar</property>
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="hexpand">True</property>
         <child>
           <object class="GtkSearchEntry" id="search_entry">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="primary_icon_name">edit-find-symbolic</property>
             <property name="primary_icon_activatable">False</property>
             <property name="primary_icon_sensitive">False</property>
@@ -31,21 +28,17 @@
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkScrolledWindow">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="hscrollbar_policy">never</property>
             <property name="shadow_type">none</property>
             <child>
               <object class="GtkViewport">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <child>
                   <object class="GtkListBox" id="sidebar">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="hexpand">False</property>
                     <property name="selection_mode">none</property>
                     <signal name="row-activated" handler="on_sidebar_row_activated" swapped="no"/>
@@ -65,14 +58,12 @@
         <child>
           <object class="GtkScrolledWindow" id="logs_scroller">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="hexpand">True</property>
             <property name="vexpand">True</property>
             <property name="shadow_type">none</property>
             <child>
               <object class="GtkTreeView" id="logs_view">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="headers_visible">False</property>
                 <property name="enable_search">False</property>
                 <property name="show_expanders">False</property>
diff --git a/ui/components-inspector-system-view.ui b/ui/components-inspector-system-view.ui
index e470f9d5..5535afb3 100644
--- a/ui/components-inspector-system-view.ui
+++ b/ui/components-inspector-system-view.ui
@@ -5,11 +5,9 @@
   <requires lib="libhandy" version="0.0"/>
   <template class="ComponentsInspectorSystemView" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkScrolledWindow">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="hscrollbar_policy">never</property>
         <property name="shadow_type">in</property>
         <property name="max_content_width">600</property>
@@ -17,11 +15,9 @@
         <child>
           <object class="GtkViewport">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="HdyClamp">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin_left">16</property>
                 <property name="margin_right">16</property>
                 <property name="margin_top">32</property>
@@ -29,13 +25,11 @@
                 <child>
                   <object class="GtkFrame">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label_xalign">0</property>
                     <child>
                       <object class="GtkListBox" id="system_list">
                         <property name="name">system_list</property>
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="selection_mode">none</property>
                         <property name="activate_on_single_click">False</property>
                       </object>
diff --git a/ui/components-inspector.ui b/ui/components-inspector.ui
index 8a11f4db..ebd6f65f 100644
--- a/ui/components-inspector.ui
+++ b/ui/components-inspector.ui
@@ -3,25 +3,21 @@
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <template class="ComponentsInspector" parent="GtkApplicationWindow">
-    <property name="can_focus">False</property>
     <property name="default_width">800</property>
     <property name="default_height">500</property>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="header_bar">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="show_close_button">True</property>
         <child>
           <object class="GtkToggleButton" id="search_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for inspector button">Search for matching log entries</property>
             <property name="action_name">win.toggle-search</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">edit-find-symbolic</property>
               </object>
             </child>
@@ -30,7 +26,6 @@
         <child>
           <object class="GtkToggleButton" id="play_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for inspector button">Toggle appending new log entries</property>
             <property name="action_name">win.toggle-play</property>
@@ -38,7 +33,6 @@
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">media-playback-start-symbolic</property>
               </object>
             </child>
@@ -50,14 +44,12 @@
         <child>
           <object class="GtkButton" id="mark_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for inspector button">Add a marker entry to the log</property>
             <signal name="clicked" handler="on_mark_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">marker-symbolic</property>
               </object>
             </child>
@@ -69,21 +61,18 @@
         <child type="title">
           <object class="GtkStackSwitcher">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="stack">stack</property>
           </object>
         </child>
         <child>
           <object class="GtkButton" id="save_as_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for inspector button">Save logs entries and details</property>
             <signal name="clicked" handler="on_save_as_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">document-save-as-symbolic</property>
               </object>
             </child>
@@ -96,14 +85,12 @@
         <child>
           <object class="GtkButton" id="copy_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for inspector button">Copy to clipboard</property>
             <property name="action_name">edt.copy</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">edit-copy-symbolic</property>
               </object>
             </child>
@@ -116,14 +103,12 @@
         <child>
           <object class="GtkButton" id="clear_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for inspector button">Clears all log entries</property>
             <signal name="clicked" handler="on_clear_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">edit-clear-all-symbolic</property>
               </object>
             </child>
@@ -138,7 +123,6 @@
     <child>
       <object class="GtkStack" id="stack">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <signal name="notify::visible-child" handler="on_visible_child_changed" swapped="no"/>
         <child>
           <placeholder/>
diff --git a/ui/components-placeholder-pane.ui b/ui/components-placeholder-pane.ui
index 9bff3028..79a1c521 100644
--- a/ui/components-placeholder-pane.ui
+++ b/ui/components-placeholder-pane.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.14"/>
   <template class="ComponentsPlaceholderPane" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="halign">center</property>
     <property name="valign">center</property>
     <property name="hexpand">True</property>
@@ -12,7 +11,6 @@
     <child>
       <object class="GtkImage" id="placeholder_image">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="pixel_size">72</property>
         <property name="icon_name">image-x-generic-symbolic</property>
         <property name="icon_size">6</property>
@@ -25,7 +23,6 @@
     <child>
       <object class="GtkLabel" id="title_label">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="label">Mea navis volitans</property>
         <style>
           <class name="title"/>
@@ -39,7 +36,6 @@
     <child>
       <object class="GtkLabel" id="subtitle_label">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="label">Mea navis volitans anguillis plena est.</property>
         <property name="wrap">True</property>
         <style>
diff --git a/ui/composer-editor.ui b/ui/composer-editor.ui
index 721911ce..9be15a3e 100644
--- a/ui/composer-editor.ui
+++ b/ui/composer-editor.ui
@@ -3,27 +3,22 @@
   <requires lib="gtk+" version="3.20"/>
   <template class="ComposerEditor" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="orientation">vertical</property>
     <child>
       <object class="GtkFrame">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="label_xalign">0</property>
         <property name="shadow_type">in</property>
         <child>
           <object class="GtkBox" id="message_area">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="GtkOverlay" id="message_overlay">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <child>
                   <object class="GtkGrid" id="body_container">
                     <property name="height_request">250</property>
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                   </object>
                   <packing>
                     <property name="index">-1</property>
@@ -31,7 +26,6 @@
                 </child>
                 <child type="overlay">
                   <object class="GtkLabel" id="message_overlay_label">
-                    <property name="can_focus">False</property>
                     <property name="no_show_all">True</property>
                     <property name="halign">start</property>
                     <property name="valign">end</property>
@@ -43,7 +37,6 @@
                 </child>
                 <child type="overlay">
                   <object class="GtkProgressBar" id="background_progress">
-                    <property name="can_focus">False</property>
                     <property name="valign">start</property>
                     <style>
                       <class name="osd"/>
@@ -68,7 +61,6 @@
     <child>
       <object class="GtkBox" id="action_bar_box">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <style>
           <class name="background"/>
@@ -83,18 +75,15 @@
                 <child>
                   <object class="ComponentsReflowBox" id="toolbar_box">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="spacing">6</property>
                     <property name="row_spacing">6</property>
                     <property name="hexpand">True</property>
                     <child>
                       <object class="GtkBox" id="font_style_buttons">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkToggleButton" id="bold_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Bold text</property>
@@ -103,7 +92,6 @@
                             <child>
                               <object class="GtkImage" id="bold_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-text-bold-symbolic</property>
                               </object>
@@ -118,7 +106,6 @@
                         <child>
                           <object class="GtkToggleButton" id="italics_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Italic text</property>
@@ -127,7 +114,6 @@
                             <child>
                               <object class="GtkImage" id="italics_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-text-italic-symbolic</property>
                               </object>
@@ -142,7 +128,6 @@
                         <child>
                           <object class="GtkToggleButton" id="underline_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Underline text</property>
@@ -151,7 +136,6 @@
                             <child>
                               <object class="GtkImage" id="underline_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-text-underline-symbolic</property>
                               </object>
@@ -166,7 +150,6 @@
                         <child>
                           <object class="GtkToggleButton" id="strikethrough_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Strikethrough text</property>
@@ -175,7 +158,6 @@
                             <child>
                               <object class="GtkImage" id="strikethrough_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-text-strikethrough-symbolic</property>
                               </object>
@@ -195,11 +177,9 @@
                     <child>
                       <object class="GtkBox" id="list_buttons">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkButton" id="ulist_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Insert bulleted list</property>
@@ -208,7 +188,6 @@
                             <child>
                               <object class="GtkImage" id="ulist_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-unordered-list-symbolic</property>
                               </object>
@@ -223,7 +202,6 @@
                         <child>
                           <object class="GtkButton" id="olist_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Insert numbered list</property>
@@ -232,7 +210,6 @@
                             <child>
                               <object class="GtkImage" id="olist_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-ordered-list-symbolic</property>
                               </object>
@@ -252,11 +229,9 @@
                     <child>
                       <object class="GtkBox" id="indentation_buttons">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkButton" id="indent_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Indent or quote text</property>
@@ -265,7 +240,6 @@
                             <child>
                               <object class="GtkImage" id="indent_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-indent-more-symbolic</property>
                               </object>
@@ -280,7 +254,6 @@
                         <child>
                           <object class="GtkButton" id="outdent_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Un-indent or unquote text</property>
@@ -289,7 +262,6 @@
                             <child>
                               <object class="GtkImage" id="outdent_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">format-indent-less-symbolic</property>
                               </object>
@@ -309,7 +281,6 @@
                     <child>
                       <object class="GtkButton" id="remove_format_button">
                         <property name="visible">True</property>
-                        <property name="can_focus">True</property>
                         <property name="focus_on_click">False</property>
                         <property name="receives_default">False</property>
                         <property name="tooltip_text" translatable="yes">Remove text formatting</property>
@@ -318,7 +289,6 @@
                         <child>
                           <object class="GtkImage" id="remove_format_image">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="pixel_size">16</property>
                             <property name="icon_name">format-text-remove-symbolic</property>
                           </object>
@@ -328,7 +298,6 @@
                     <child>
                       <object class="GtkMenuButton" id="font_button">
                         <property name="visible">True</property>
-                        <property name="can_focus">True</property>
                         <property name="focus_on_click">False</property>
                         <property name="menu_model">font_menu</property>
                         <property name="tooltip_text" translatable="yes">Change font type</property>
@@ -336,16 +305,13 @@
                         <child>
                           <object class="GtkBox">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="orientation">horizontal</property>
                             <child>
                               <object class="GtkStack" id="font_button_stack">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <child>
                                   <object class="GtkLabel">
                                     <property name="visible">True</property>
-                                    <property name="can_focus">False</property>
                                     <property name="label" translatable="yes">Sans Serif</property>
                                     <property name="halign">start</property>
                                   </object>
@@ -356,7 +322,6 @@
                                 <child>
                                   <object class="GtkLabel">
                                     <property name="visible">True</property>
-                                    <property name="can_focus">False</property>
                                     <property name="label" translatable="yes">Serif</property>
                                     <property name="halign">start</property>
                                   </object>
@@ -367,7 +332,6 @@
                                 <child>
                                   <object class="GtkLabel">
                                     <property name="visible">True</property>
-                                    <property name="can_focus">False</property>
                                     <property name="label" translatable="yes">Fixed Width</property>
                                     <property name="halign">start</property>
                                   </object>
@@ -380,7 +344,6 @@
                             <child>
                               <object class="GtkImage">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="icon-name">pan-down</property>
                               </object>
                             </child>
@@ -391,14 +354,12 @@
                     <child>
                       <object class="GtkButton">
                         <property name="visible">True</property>
-                        <property name="can_focus">True</property>
                         <property name="focus_on_click">False</property>
                         <property name="action_name">edt.color</property>
                         <property name="tooltip_text" translatable="yes">Change font color</property>
                         <child>
                           <object class="GtkImage" id="font_color_icon">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                           </object>
                         </child>
                       </object>
@@ -406,7 +367,6 @@
                     <child>
                       <object class="GtkMenuButton" id="font_size_button">
                         <property name="visible">True</property>
-                        <property name="can_focus">True</property>
                         <property name="focus_on_click">False</property>
                         <property name="menu_model">font_size_menu</property>
                         <property name="tooltip_text" translatable="yes">Change font size</property>
@@ -414,19 +374,16 @@
                         <child>
                           <object class="GtkBox">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="orientation">horizontal</property>
                             <child>
                               <object class="GtkImage">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="icon-name">font-size-symbolic</property>
                               </object>
                             </child>
                             <child>
                               <object class="GtkImage">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="icon-name">pan-down</property>
                               </object>
                             </child>
@@ -437,11 +394,9 @@
                     <child>
                       <object class="GtkBox" id="insert_buttons">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkButton" id="insert_link_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Insert or update text link</property>
@@ -450,7 +405,6 @@
                             <child>
                               <object class="GtkImage" id="insert_link_image">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">insert-link-symbolic</property>
                               </object>
@@ -465,7 +419,6 @@
                         <child>
                           <object class="GtkButton" id="insert_image_button">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="focus_on_click">False</property>
                             <property name="receives_default">False</property>
                             <property name="tooltip_text" translatable="yes">Insert an image</property>
@@ -474,7 +427,6 @@
                             <child>
                               <object class="GtkImage">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="pixel_size">16</property>
                                 <property name="icon_name">insert-image-symbolic</property>
                               </object>
@@ -503,11 +455,9 @@
             <child>
               <object class="GtkBox" id="command_buttons">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <child>
                   <object class="GtkButton">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="focus_on_click">False</property>
                     <property name="receives_default">False</property>
                     <property name="tooltip_text" translatable="yes">Undo last edit</property>
@@ -516,7 +466,6 @@
                     <child>
                       <object class="GtkImage">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="pixel_size">16</property>
                         <property name="icon_name">edit-undo-symbolic</property>
                       </object>
@@ -531,7 +480,6 @@
                 <child>
                   <object class="GtkButton">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="focus_on_click">False</property>
                     <property name="receives_default">False</property>
                     <property name="tooltip_text" translatable="yes">Redo last edit</property>
@@ -540,7 +488,6 @@
                     <child>
                       <object class="GtkImage">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="pixel_size">16</property>
                         <property name="icon_name">edit-redo-symbolic</property>
                       </object>
@@ -560,7 +507,6 @@
             <child>
               <object class="GtkButton" id="new_message_attach_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes">Attach a file</property>
@@ -569,7 +515,6 @@
                 <child>
                   <object class="GtkImage" id="new_message_attach_image">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="pixel_size">16</property>
                     <property name="icon_name">mail-attachment-symbolic</property>
                   </object>
@@ -581,11 +526,9 @@
             </child>
             <child>
               <object class="GtkBox" id="conversation_attach_buttons">
-                <property name="can_focus">False</property>
                 <child>
                   <object class="GtkButton" id="conversation_attach_new_button">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="focus_on_click">False</property>
                     <property name="receives_default">False</property>
                     <property name="tooltip_text" translatable="yes">Attach a file</property>
@@ -594,7 +537,6 @@
                     <child>
                       <object class="GtkImage" id="conversation_attach_new_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="pixel_size">16</property>
                         <property name="icon_name">mail-attachment-symbolic</property>
                       </object>
@@ -609,7 +551,6 @@
                 <child>
                   <object class="GtkButton" id="conversation_attach_original_button">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="focus_on_click">False</property>
                     <property name="receives_default">False</property>
                     <property name="tooltip_text" translatable="yes">Add original attachments</property>
@@ -618,7 +559,6 @@
                     <child>
                       <object class="GtkImage" id="conversation_attach_original_image">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="pixel_size">16</property>
                         <property name="icon_name">edit-copy-symbolic</property>
                       </object>
@@ -641,7 +581,6 @@
             <child type="center">
               <object class="GtkLabel" id="info_label">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="ellipsize">end</property>
                 <property name="width_chars">6</property>
                 <property name="xalign">0</property>
@@ -653,7 +592,6 @@
             <child>
               <object class="GtkMenuButton" id="more_options_button">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="menu_model">more_options_menu</property>
@@ -673,7 +611,6 @@
             <child>
               <object class="GtkToggleButton" id="show_formatting_button">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="action_name">edt.show-formatting</property>
@@ -692,7 +629,6 @@
             <child>
               <object class="GtkMenuButton" id="select_dictionary_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes">Select spell checking languages</property>
@@ -701,7 +637,6 @@
                 <child>
                   <object class="GtkImage" id="select_dictionary_image">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="pixel_size">16</property>
                     <property name="icon_name">tools-check-spelling-symbolic</property>
                   </object>
diff --git a/ui/composer-headerbar.ui b/ui/composer-headerbar.ui
index 13db768a..92eaf2f4 100644
--- a/ui/composer-headerbar.ui
+++ b/ui/composer-headerbar.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.20"/>
   <template class="ComposerHeaderbar" parent="GtkHeaderBar">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <child type="title">
       <object class="GtkBox">
         <property name="visible">False</property>
@@ -13,11 +12,9 @@
     <child>
       <object class="GtkBox" id="detach_start">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="detach_start_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="focus_on_click">False</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Detach the composer from the window</property>
@@ -28,7 +25,6 @@
             <child>
               <object class="GtkImage" id="detach_start_image">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="pixel_size">16</property>
                 <property name="icon_name">detach-symbolic</property>
               </object>
@@ -43,7 +39,6 @@
         <child>
           <object class="GtkSeparator" id="detach_start_separator">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
           </object>
           <packing>
@@ -57,7 +52,6 @@
     <child>
       <object class="GtkButton">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="label" translatable="yes">Cancel</property>
         <property name="action_name">cmh.composer-close</property>
       </object>
@@ -65,7 +59,6 @@
     <child>
       <object class="GtkButton" id="recipients_button">
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="focus_on_click">False</property>
         <property name="receives_default">False</property>
         <property name="relief">none</property>
@@ -73,7 +66,6 @@
         <child>
           <object class="GtkLabel" id="recipients_label">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="ellipsize">end</property>
           </object>
         </child>
@@ -85,11 +77,9 @@
     <child>
       <object class="GtkBox" id="detach_end">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkSeparator" id="detach_end_separator">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
           </object>
           <packing>
@@ -101,7 +91,6 @@
         <child>
           <object class="GtkButton" id="detach_end_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="focus_on_click">False</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Detach the composer from the window</property>
@@ -112,7 +101,6 @@
             <child>
               <object class="GtkImage" id="detach_end_image">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="pixel_size">16</property>
                 <property name="icon_name">detach-symbolic</property>
               </object>
@@ -134,7 +122,6 @@
       <object class="GtkButton" id="send_button">
         <property name="label" translatable="yes">_Send</property>
         <property name="visible">True</property>
-        <property name="can_focus">True</property>
         <property name="focus_on_click">False</property>
         <property name="receives_default">False</property>
         <property name="action_name">cmh.send</property>
@@ -152,11 +139,9 @@
     <child>
       <object class="GtkBox" id="close_buttons">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <child>
           <object class="GtkButton" id="discard_and_close_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="focus_on_click">False</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Discard and Close</property>
@@ -165,7 +150,6 @@
             <child>
               <object class="GtkImage" id="discard_and_close_image">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="pixel_size">16</property>
                 <property name="icon_name">user-trash-symbolic</property>
               </object>
@@ -180,7 +164,6 @@
         <child>
           <object class="GtkButton" id="save_and_close_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="focus_on_click">False</property>
             <property name="receives_default">False</property>
             <property name="tooltip_text" translatable="yes">Save and Close</property>
@@ -189,7 +172,6 @@
             <child>
               <object class="GtkImage" id="save_and_close_image">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="pixel_size">16</property>
                 <property name="icon_name">document-save-symbolic</property>
               </object>
diff --git a/ui/composer-link-popover.ui b/ui/composer-link-popover.ui
index 463578ed..c48caef1 100644
--- a/ui/composer-link-popover.ui
+++ b/ui/composer-link-popover.ui
@@ -3,13 +3,11 @@
 <interface>
   <requires lib="gtk+" version="3.14"/>
   <template class="ComposerLinkPopover" parent="GtkPopover">
-    <property name="can_focus">False</property>
     <property name="position">top</property>
     <property name="width-request">360</property>
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="margin_left">6</property>
         <property name="margin_right">6</property>
         <property name="margin_top">6</property>
@@ -19,7 +17,6 @@
         <child>
           <object class="GtkEntry" id="url">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="can_default">True</property>
             <property name="hexpand">True</property>
             <property name="primary_icon_activatable">False</property>
@@ -37,7 +34,6 @@
         <child>
           <object class="GtkButton" id="insert">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Note that this button and the Update button will never be shown at the same time to the user.">Insert the new link with this URL</property>
             <property name="label" translatable="yes">Add</property>
@@ -56,7 +52,6 @@
         <child>
           <object class="GtkButton" id="update">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Note that this button and the Insert button will never be shown at the same time to the user.">Update this link’s URL</property>
             <property name="label" translatable="yes">Update</property>
@@ -70,14 +65,12 @@
         <child>
           <object class="GtkButton" id="remove">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes">Delete this link</property>
             <signal name="clicked" handler="on_remove_clicked" swapped="no"/>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">user-trash-symbolic</property>
               </object>
             </child>
diff --git a/ui/composer-widget.ui b/ui/composer-widget.ui
index 5f93691c..ac7ef672 100644
--- a/ui/composer-widget.ui
+++ b/ui/composer-widget.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.20"/>
   <template class="ComposerWidget" parent="GtkEventBox">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <signal name="drag-data-received" handler="on_drag_data_received" swapped="no"/>
     <signal name="drag-drop" handler="on_drag_drop" swapped="no"/>
     <signal name="drag-leave" handler="on_drag_leave" swapped="no"/>
@@ -13,12 +12,10 @@
     <child>
       <object class="GtkBox" id="composer_container">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkBox" id="header_container">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <placeholder/>
             </child>
@@ -32,22 +29,18 @@
         <child>
           <object class="GtkBox" id="hidden_on_attachment_drag_over">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="GtkBox" id="hidden_on_attachment_drag_over_child">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="orientation">vertical</property>
                 <property name="spacing">6</property>
                 <child>
                   <object class="GtkGrid" id="email_headers">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkBox" id="filled_headers">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="margin_top">6</property>
                         <property name="orientation">vertical</property>
                         <child>
@@ -68,11 +61,9 @@
                     <child>
                       <object class="GtkRevealer" id="extended_headers_revealer">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <child>
                           <object class="GtkBox" id="extended_headers">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="orientation">vertical</property>
                             <child>
                               <placeholder/>
@@ -115,18 +106,15 @@
         <child>
           <object class="GtkBox" id="visible_on_attachment_drag_over">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="GtkBox" id="visible_on_attachment_drag_over_child">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="valign">center</property>
                 <property name="orientation">vertical</property>
                 <property name="spacing">6</property>
                 <child>
                   <object class="GtkLabel" id="label1">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="valign">center</property>
                     <property name="label" translatable="yes">Drop files here</property>
                     <attributes>
@@ -142,7 +130,6 @@
                 <child>
                   <object class="GtkLabel" id="label2">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="valign">center</property>
                     <property name="label" translatable="yes">To add them as attachments</property>
                   </object>
@@ -169,7 +156,6 @@
         <child>
           <object class="GtkGrid" id="editor_container">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
             <child>
               <placeholder/>
@@ -208,7 +194,6 @@
         <child>
           <object class="GtkBox" id="attachments_box">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
             <child>
               <placeholder/>
@@ -228,14 +213,12 @@
   </template>
   <object class="GtkToggleButton" id="show_extended_headers">
     <property name="visible">True</property>
-    <property name="can_focus">True</property>
     <property name="receives_default">True</property>
     <property name="tooltip_text" translatable="yes">Show Cc, Bcc, and Reply-To fields</property>
     <property name="action_name">win.show-extended-headers</property>
     <child>
       <object class="GtkImage">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="icon_name">view-more-horizontal-symbolic</property>
       </object>
     </child>
diff --git a/ui/conversation-contact-popover.ui b/ui/conversation-contact-popover.ui
index f63bd303..113f718c 100644
--- a/ui/conversation-contact-popover.ui
+++ b/ui/conversation-contact-popover.ui
@@ -3,17 +3,14 @@
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <template class="ConversationContactPopover" parent="GtkPopover">
-    <property name="can_focus">False</property>
     <signal name="closed" handler="after_closed" after="yes" swapped="no"/>
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkGrid" id="contact_pane">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="margin_left">10</property>
             <property name="margin_right">10</property>
             <property name="margin_top">10</property>
@@ -22,12 +19,10 @@
             <child>
               <object class="GtkGrid">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="margin_bottom">6</property>
                 <property name="column_spacing">12</property>
                 <child>
                   <object class="GtkButton" id="unstarred_button">
-                    <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
                     <property name="halign">end</property>
                     <property name="valign">center</property>
@@ -36,7 +31,6 @@
                     <child>
                       <object class="GtkImage">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">non-starred-symbolic</property>
                       </object>
                     </child>
@@ -48,7 +42,6 @@
                 </child>
                 <child>
                   <object class="GtkButton" id="starred_button">
-                    <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
                     <property name="halign">end</property>
                     <property name="valign">center</property>
@@ -57,7 +50,6 @@
                     <child>
                       <object class="GtkImage">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">starred-symbolic</property>
                       </object>
                     </child>
@@ -70,7 +62,6 @@
                 <child>
                   <object class="GtkImage" id="avatar">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="pixel_size">48</property>
                   </object>
                   <packing>
@@ -81,12 +72,10 @@
                 <child>
                   <object class="GtkGrid">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="orientation">vertical</property>
                     <child>
                       <object class="GtkLabel" id="contact_name">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="valign">end</property>
                         <property name="vexpand">True</property>
@@ -99,7 +88,6 @@
                     <child>
                       <object class="GtkLabel" id="contact_address">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="halign">start</property>
                         <property name="valign">start</property>
                         <property name="margin_top">2</property>
@@ -130,7 +118,6 @@
             <child>
               <object class="GtkSeparator">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
               </object>
               <packing>
                 <property name="left_attach">0</property>
@@ -140,7 +127,6 @@
             <child>
               <object class="GtkModelButton">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">con.new-conversation</property>
                 <property name="text" translatable="yes">New Conversation…</property>
@@ -153,7 +139,6 @@
             <child>
               <object class="GtkModelButton">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">con.copy-email</property>
                 <property name="text" translatable="yes">Copy Email Address</property>
@@ -166,7 +151,6 @@
             <child>
               <object class="GtkSeparator">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
               </object>
               <packing>
                 <property name="left_attach">0</property>
@@ -176,7 +160,6 @@
             <child>
               <object class="GtkModelButton" id="save_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">con.save</property>
                 <property name="text" translatable="yes">Save in Contacts…</property>
@@ -189,7 +172,6 @@
             <child>
               <object class="GtkModelButton">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">con.show-conversations</property>
                 <property name="text" translatable="yes">Show Conversations</property>
@@ -202,7 +184,6 @@
             <child>
               <object class="GtkModelButton" id="open_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">con.open</property>
                 <property name="text" translatable="yes">Open in Contacts</property>
@@ -215,7 +196,6 @@
             <child>
               <object class="GtkModelButton" id="load_remote_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="action_name">con.load-remote</property>
                 <property name="text" translatable="yes">Always Load Remote Images</property>
@@ -233,7 +213,6 @@
         </child>
         <child>
           <object class="GtkGrid" id="deceptive_pane">
-            <property name="can_focus">False</property>
             <property name="margin_left">10</property>
             <property name="margin_right">10</property>
             <property name="margin_top">10</property>
@@ -243,12 +222,10 @@
             <child>
               <object class="GtkGrid">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="column_spacing">12</property>
                 <child>
                   <object class="GtkImage">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="pixel_size">24</property>
                     <property name="icon_name">dialog-warning-symbolic</property>
                   </object>
@@ -260,7 +237,6 @@
                 <child>
                   <object class="GtkLabel">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes" comments="Title label on contact popover">Deceptive email address</property>
                     <style>
                       <class name="title"/>
@@ -280,7 +256,6 @@
             <child>
               <object class="GtkSeparator">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
               </object>
               <packing>
                 <property name="left_attach">0</property>
@@ -290,7 +265,6 @@
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="label" translatable="yes" comments="Contact popover label">This email address is:</property>
                 <property name="xalign">0</property>
               </object>
@@ -302,7 +276,6 @@
             <child>
               <object class="GtkLabel" id="actual_email_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <style>
                   <class name="geary-deceptive"/>
                 </style>
@@ -315,7 +288,6 @@
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="label" translatable="yes" comments="Contact popover label">But was forged as:</property>
                 <property name="xalign">0</property>
               </object>
@@ -327,7 +299,6 @@
             <child>
               <object class="GtkLabel" id="forged_email_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <style>
                   <class name="geary-deceptive"/>
                 </style>
@@ -340,7 +311,6 @@
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="label" translatable="yes" comments="Contact popover label">The sender may not be trustworthy</property>
                 <property name="xalign">0</property>
               </object>
diff --git a/ui/conversation-email.ui b/ui/conversation-email.ui
index e1fac032..0d855574 100644
--- a/ui/conversation-email.ui
+++ b/ui/conversation-email.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.14"/>
   <template class="ConversationEmail" parent="GtkBox">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="hexpand">True</property>
     <property name="orientation">vertical</property>
     <child>
@@ -16,13 +15,11 @@
   </template>
   <object class="GtkGrid" id="actions">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="halign">end</property>
     <property name="valign">start</property>
     <child>
       <object class="GtkButton" id="attachments_button">
         <property name="sensitive">False</property>
-        <property name="can_focus">True</property>
         <property name="receives_default">True</property>
         <property name="tooltip_text" translatable="yes">Save all attachments</property>
         <property name="valign">start</property>
@@ -31,7 +28,6 @@
         <child>
           <object class="GtkImage">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="icon_name">mail-attachment-symbolic</property>
           </object>
         </child>
@@ -45,7 +41,6 @@
       <object class="GtkButton" id="star_button">
         <property name="visible">True</property>
         <property name="sensitive">False</property>
-        <property name="can_focus">True</property>
         <property name="receives_default">True</property>
         <property name="tooltip_text" translatable="yes" comments="Note: The application will never show this button at the same time as unstar_button, one will always be hidden.">Mark this message as starred</property>
         <property name="valign">start</property>
@@ -54,7 +49,6 @@
         <child>
           <object class="GtkImage">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="icon_name">non-starred-symbolic</property>
           </object>
         </child>
@@ -67,7 +61,6 @@
     <child>
       <object class="GtkButton" id="unstar_button">
         <property name="sensitive">False</property>
-        <property name="can_focus">True</property>
         <property name="receives_default">True</property>
         <property name="tooltip_text" translatable="yes" comments="Note: The application will never show this button at the same time as star_button, one will always be hidden.">Mark this message as not starred</property>
         <property name="valign">start</property>
@@ -76,7 +69,6 @@
         <child>
           <object class="GtkImage">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="icon_name">starred-symbolic</property>
           </object>
         </child>
@@ -90,7 +82,6 @@
       <object class="GtkMenuButton" id="email_menubutton">
         <property name="visible">True</property>
         <property name="sensitive">False</property>
-        <property name="can_focus">True</property>
         <property name="receives_default">True</property>
         <property name="valign">start</property>
         <property name="relief">none</property>
@@ -98,7 +89,6 @@
         <child>
           <object class="GtkImage">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="icon_name">view-more-symbolic</property>
           </object>
         </child>
@@ -111,7 +101,6 @@
   </object>
   <object class="GtkGrid" id="sub_messages">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="hexpand">True</property>
     <property name="orientation">vertical</property>
     <child>
diff --git a/ui/conversation-message-link-popover.ui b/ui/conversation-message-link-popover.ui
index 090d30a7..e26400db 100644
--- a/ui/conversation-message-link-popover.ui
+++ b/ui/conversation-message-link-popover.ui
@@ -3,12 +3,10 @@
 <interface>
   <requires lib="gtk+" version="3.14"/>
   <object class="GtkPopover" id="link_popover">
-    <property name="can_focus">False</property>
     <property name="position">bottom</property>
     <child>
       <object class="GtkGrid">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="margin_left">12</property>
         <property name="margin_right">12</property>
         <property name="margin_top">12</property>
@@ -17,7 +15,6 @@
         <child>
           <object class="GtkImage">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">center</property>
             <property name="margin_right">12</property>
             <property name="vexpand">True</property>
@@ -33,7 +30,6 @@
         <child>
           <object class="GtkLabel" id="bad_link_label">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="margin_left">12</property>
             <property name="label">&lt;a href="http://badlink.com"&gt;http://badlink.com&lt;/a&gt;</property>
@@ -49,7 +45,6 @@
         <child>
           <object class="GtkLabel">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="label" translatable="yes">But actually goes to:</property>
           </object>
@@ -61,7 +56,6 @@
         <child>
           <object class="GtkLabel" id="good_link_label">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="margin_left">12</property>
             <property name="margin_bottom">6</property>
@@ -78,7 +72,6 @@
         <child>
           <object class="GtkLabel">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="margin_top">12</property>
             <property name="label" translatable="yes">The link appears to go to:</property>
@@ -91,7 +84,6 @@
         <child>
           <object class="GtkLabel">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="label" translatable="yes">Deceptive link found</property>
             <attributes>
@@ -106,7 +98,6 @@
         <child>
           <object class="GtkLabel">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="label" translatable="yes">The email sender may be leading you to the wrong web site.</property>
           </object>
@@ -118,7 +109,6 @@
         <child>
           <object class="GtkLabel">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">start</property>
             <property name="margin_top">12</property>
             <property name="label" translatable="yes">If unsure, contact the sender and ask before continuing.</property>
diff --git a/ui/conversation-message.ui b/ui/conversation-message.ui
index d68817b2..769a3e5f 100644
--- a/ui/conversation-message.ui
+++ b/ui/conversation-message.ui
@@ -4,12 +4,10 @@
   <requires lib="gtk+" version="3.14"/>
   <template class="ConversationMessage" parent="GtkGrid">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="orientation">vertical</property>
     <child>
       <object class="GtkGrid" id="summary">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="hexpand">True</property>
         <property name="column_spacing">6</property>
         <child>
@@ -17,7 +15,6 @@
             <property name="width_request">18</property>
             <property name="height_request">18</property>
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="valign">start</property>
             <property name="pixel_size">48</property>
           </object>
@@ -29,36 +26,30 @@
         <child>
           <object class="GtkGrid">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="hexpand">True</property>
             <property name="orientation">vertical</property>
             <child>
               <object class="GtkRevealer" id="compact_revealer">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="hexpand">True</property>
                 <property name="transition_type">none</property>
                 <property name="reveal_child">True</property>
                 <child>
                   <object class="GtkGrid">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="hexpand">True</property>
                     <child>
                       <object class="GtkGrid">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="orientation">vertical</property>
                         <child>
                           <object class="GtkGrid">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="hexpand">True</property>
                             <child>
                               <object class="GtkLabel" id="compact_from">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="hexpand">True</property>
                                 <property name="label" translatable="yes">From &lt;email&gt;</property>
                                 <property name="ellipsize">end</property>
@@ -75,7 +66,6 @@
                             <child>
                               <object class="GtkLabel" id="compact_date">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="label" translatable="yes">1/1/1970	</property>
                                 <property name="ellipsize">end</property>
                                 <style>
@@ -96,7 +86,6 @@
                         <child>
                           <object class="GtkLabel" id="compact_body">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="halign">start</property>
                             <property name="hexpand">True</property>
                             <property name="label" translatable="yes">Preview body text.</property>
@@ -131,29 +120,24 @@
             <child>
               <object class="GtkRevealer" id="header_revealer">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="hexpand">True</property>
                 <property name="transition_type">none</property>
                 <child>
                   <object class="GtkGrid">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="hexpand">True</property>
                     <child>
                       <object class="GtkGrid" id="headers">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="hexpand">True</property>
                         <property name="orientation">vertical</property>
                         <child>
                           <object class="GtkGrid" id="from_header">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
                             <property name="hexpand">True</property>
                             <child>
                               <object class="GtkFlowBox" id="from">
                                 <property name="visible">True</property>
-                                <property name="can_focus">True</property>
                                 <property name="valign">baseline</property>
                                 <property name="hexpand">True</property>
                                 <property name="column_spacing">2</property>
@@ -172,7 +156,6 @@
                             <child>
                               <object class="GtkLabel" id="date">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="valign">baseline</property>
                                 <property name="label" translatable="yes">1/1/1970	</property>
                                 <property name="ellipsize">end</property>
@@ -193,11 +176,9 @@
                         </child>
                         <child>
                           <object class="GtkGrid" id="sender_header">
-                            <property name="can_focus">False</property>
                             <child>
                               <object class="GtkLabel" id="sender_label">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="label" translatable="yes">Sent by:</property>
                                 <property name="yalign">0</property>
                                 <style>
@@ -213,7 +194,6 @@
                             <child>
                               <object class="GtkFlowBox" id="sender_address">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="valign">start</property>
                                 <property name="hexpand">True</property>
                                 <property name="column_spacing">2</property>
@@ -237,11 +217,9 @@
                         </child>
                         <child>
                           <object class="GtkGrid" id="reply_to_header">
-                            <property name="can_focus">False</property>
                             <child>
                               <object class="GtkLabel" id="reply_to_label">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="label" translatable="yes">Reply to:</property>
                                 <property name="yalign">0</property>
                                 <style>
@@ -257,7 +235,6 @@
                             <child>
                               <object class="GtkFlowBox" id="reply_to_addresses">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="valign">start</property>
                                 <property name="hexpand">True</property>
                                 <property name="column_spacing">2</property>
@@ -282,7 +259,6 @@
                         <child>
                           <object class="GtkLabel" id="subject">
                             <property name="visible">True</property>
-                            <property name="can_focus">True</property>
                             <property name="halign">start</property>
                             <property name="hexpand">True</property>
                             <property name="label" translatable="yes">Subject</property>
@@ -301,11 +277,9 @@
                         </child>
                         <child>
                           <object class="GtkGrid" id="to_header">
-                            <property name="can_focus">False</property>
                             <child>
                               <object class="GtkLabel" id="to_label">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="label" translatable="yes">To:</property>
                                 <property name="yalign">0</property>
                                 <style>
@@ -321,7 +295,6 @@
                             <child>
                               <object class="ConversationMessageContactList" id="to">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="valign">start</property>
                                 <property name="hexpand">True</property>
                                 <property name="column_spacing">2</property>
@@ -345,11 +318,9 @@
                         </child>
                         <child>
                           <object class="GtkGrid" id="cc_header">
-                            <property name="can_focus">False</property>
                             <child>
                               <object class="GtkLabel" id="cc_label">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="label" translatable="yes">Cc:</property>
                                 <property name="yalign">0</property>
                                 <style>
@@ -365,7 +336,6 @@
                             <child>
                               <object class="ConversationMessageContactList" id="cc">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="valign">start</property>
                                 <property name="hexpand">True</property>
                                 <property name="column_spacing">2</property>
@@ -389,11 +359,9 @@
                         </child>
                         <child>
                           <object class="GtkGrid" id="bcc_header">
-                            <property name="can_focus">False</property>
                             <child>
                               <object class="GtkLabel" id="bcc_label">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="label" translatable="yes">Bcc:</property>
                                 <property name="yalign">0</property>
                                 <style>
@@ -409,7 +377,6 @@
                             <child>
                               <object class="ConversationMessageContactList" id="bcc">
                                 <property name="visible">True</property>
-                                <property name="can_focus">False</property>
                                 <property name="valign">start</property>
                                 <property name="hexpand">True</property>
                                 <property name="column_spacing">2</property>
@@ -466,16 +433,13 @@
     <child>
       <object class="GtkRevealer" id="body_revealer">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="transition_type">slide-up</property>
         <child>
           <object class="GtkGrid">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <child>
               <object class="ComponentsInfoBarStack" id="info_bars">
                 <property name="visible">False</property>
-                <property name="can_focus">False</property>
                 <property name="shadow_type">none</property>
                 <property name="algorithm">priority-queue</property>
               </object>
@@ -488,11 +452,9 @@
               <object class="GtkOverlay">
                 <property name="height_request">6</property>
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <child>
                   <object class="GtkGrid" id="body_container">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="orientation">vertical</property>
                     <child>
                       <placeholder/>
@@ -531,7 +493,6 @@
                 </child>
                 <child type="overlay">
                   <object class="GtkProgressBar" id="body_progress">
-                    <property name="can_focus">False</property>
                     <property name="valign">start</property>
                     <style>
                       <class name="osd"/>
diff --git a/ui/conversation-viewer.ui b/ui/conversation-viewer.ui
index 8972d4b9..d611ee9a 100644
--- a/ui/conversation-viewer.ui
+++ b/ui/conversation-viewer.ui
@@ -5,14 +5,12 @@
   <template class="ConversationViewer" parent="GtkStack">
     <property name="name">conversation_viewer</property>
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="transition_type">crossfade</property>
     <child>
       <object class="GtkSpinner" id="loading_page">
         <property name="width_request">32</property>
         <property name="height_request">32</property>
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="halign">center</property>
         <property name="valign">center</property>
       </object>
@@ -23,7 +21,6 @@
     <child>
       <object class="GtkGrid" id="no_conversations_page">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <placeholder/>
@@ -37,23 +34,19 @@
     <child>
       <object class="GtkGrid" id="conversation_page">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkSearchBar" id="conversation_find_bar">
             <property name="visible">True</property>
             <property name="app_paintable">True</property>
-            <property name="can_focus">False</property>
             <property name="hexpand">True</property>
             <signal name="notify::search-mode-enabled" handler="on_find_mode_changed" swapped="no"/>
             <child>
               <object class="GtkGrid">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <child>
                   <object class="GtkSearchEntry" id="conversation_find_entry">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
                     <property name="primary_icon_name">edit-find-symbolic</property>
                     <property name="primary_icon_activatable">False</property>
                     <property name="primary_icon_sensitive">False</property>
@@ -69,7 +62,6 @@
                 <child>
                   <object class="GtkButton" id="conversation_find_prev">
                     <property name="sensitive">False</property>
-                    <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
                     <property name="no_show_all">True</property>
                     <property name="tooltip_text" translatable="yes">Find the previous occurrence of the search string.</property>
@@ -77,7 +69,6 @@
                     <child>
                       <object class="GtkImage">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">go-up-symbolic</property>
                       </object>
                     </child>
@@ -90,7 +81,6 @@
                 <child>
                   <object class="GtkButton" id="conversation_find_next">
                     <property name="sensitive">False</property>
-                    <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
                     <property name="no_show_all">True</property>
                     <property name="tooltip_text" translatable="yes">Find the next occurrence of the search string.</property>
@@ -98,7 +88,6 @@
                     <child>
                       <object class="GtkImage">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="icon_name">go-down-symbolic</property>
                       </object>
                     </child>
@@ -131,7 +120,6 @@
     <child>
       <object class="GtkGrid" id="multiple_conversations_page">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <placeholder/>
@@ -145,7 +133,6 @@
     <child>
       <object class="GtkGrid" id="empty_folder_page">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <placeholder/>
@@ -159,7 +146,6 @@
     <child>
       <object class="GtkGrid" id="empty_search_page">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <placeholder/>
@@ -173,7 +159,6 @@
     <child>
       <object class="GtkGrid" id="composer_page">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <placeholder/>
diff --git a/ui/find_bar.glade b/ui/find_bar.glade
index 85ba52b0..48228ada 100644
--- a/ui/find_bar.glade
+++ b/ui/find_bar.glade
@@ -3,28 +3,23 @@
   <!-- interface-requires gtk+ 3.14 -->
   <object class="GtkImage" id="image1">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="icon_name">go-down-symbolic</property>
   </object>
   <object class="GtkImage" id="image2">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="icon_name">window-close-symbolic</property>
     <property name="icon-size">1</property>
   </object>
   <object class="GtkImage" id="image3">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="icon_name">go-up-symbolic</property>
   </object>
   <object class="GtkBox" id="box: contents">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="orientation">vertical</property>
     <child>
       <object class="GtkSeparator" id="separator1">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
       </object>
       <packing>
         <property name="expand">False</property>
@@ -35,7 +30,6 @@
     <child>
       <object class="GtkBox" id="box: controls">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="margin_top">2</property>
         <property name="margin_bottom">2</property>
         <style>
@@ -44,7 +38,6 @@
         <child>
           <object class="GtkButton" id="button: close">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="margin_end">6</property>
             <property name="image">image2</property>
@@ -60,7 +53,6 @@
         <child>
           <object class="GtkLabel" id="label: find">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="margin_end">2</property>
             <property name="yalign">0.4699999988079071</property>
             <property name="label" translatable="yes">Find:</property>
@@ -74,7 +66,6 @@
         <child>
           <object class="GtkEntry" id="entry: find">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="invisible_char">●</property>
             <property name="invisible_char_set">True</property>
           </object>
@@ -88,7 +79,6 @@
           <object class="GtkButton" id="button: previous">
             <property name="label" translatable="yes">_Previous</property>
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="margin_start">2</property>
             <property name="image">image3</property>
@@ -106,7 +96,6 @@
           <object class="GtkButton" id="button: next">
             <property name="label" translatable="yes">_Next</property>
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="image">image1</property>
             <property name="relief">none</property>
@@ -124,7 +113,6 @@
           <object class="GtkCheckButton" id="check: case_sensitive">
             <property name="label" translatable="yes">_Case sensitive</property>
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">False</property>
             <property name="margin_start">8</property>
             <property name="margin_end">8</property>
@@ -141,7 +129,6 @@
         </child>
         <child>
           <object class="GtkLabel" id="label: result">
-            <property name="can_focus">False</property>
             <property name="label" translatable="yes">label</property>
           </object>
           <packing>
diff --git a/ui/folder-popover.ui b/ui/folder-popover.ui
index 06a0f98c..473d3dc3 100644
--- a/ui/folder-popover.ui
+++ b/ui/folder-popover.ui
@@ -3,11 +3,9 @@
 <interface>
   <requires lib="gtk+" version="3.14"/>
   <template class="FolderPopover" parent="GtkPopover">
-    <property name="can_focus">False</property>
     <child>
       <object class="GtkBox" id="container">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="margin_start">6</property>
         <property name="margin_end">6</property>
         <property name="margin_top">6</property>
@@ -17,7 +15,6 @@
         <child>
           <object class="GtkSearchEntry" id="search_entry">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="primary_icon_name">edit-find-symbolic</property>
             <property name="primary_icon_activatable">False</property>
             <property name="primary_icon_sensitive">False</property>
@@ -35,13 +32,11 @@
             <property name="min_content_width">200</property>
             <property name="min_content_height">320</property>
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="shadow_type">in</property>
             <property name="hscrollbar_policy">never</property>
             <child>
               <object class="GtkListBox" id="list_box">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="activate_on_single_click">True</property>
                 <signal name="row_activated" handler="on_row_activated" swapped="no"/>
                 <style>
diff --git a/ui/main-toolbar.ui b/ui/main-toolbar.ui
index ed9948b1..39a04191 100644
--- a/ui/main-toolbar.ui
+++ b/ui/main-toolbar.ui
@@ -4,38 +4,32 @@
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkImage" id="archive_image">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="icon_name">mail-archive-symbolic</property>
   </object>
   <template class="MainToolbar" parent="HdyLeaflet">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="can_swipe_back">True</property>
     <property name="transition_type">over</property>
     <child>
       <object class="HdyLeaflet" id="conversations_leaflet">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="can_swipe_back">True</property>
         <property name="transition_type">over</property>
         <property name="hexpand_set">True</property>
         <child>
           <object class="GtkHeaderBar" id="folder_header">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="show_close_button" bind-source="MainToolbar" bind-property="show_close_button" bind-flags="sync-create"/>
             <property name="title">Mail</property>
             <child>
               <object class="GtkMenuButton" id="main_menu_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="always_show_image">True</property>
                 <child>
                   <object class="GtkImage" id="main_menu_image">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="icon_name">open-menu-symbolic</property>
                   </object>
                 </child>
@@ -53,7 +47,6 @@
         <child>
           <object class="GtkSeparator" id="folder_separator">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="orientation">vertical</property>
             <style>
               <class name="sidebar"/>
@@ -66,12 +59,10 @@
         <child>
           <object class="GtkHeaderBar" id="conversations_header">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="hexpand">True</property>
             <property name="show_close_button" bind-source="MainToolbar" bind-property="show_close_button" bind-flags="sync-create"/>
             <child>
               <object class="GtkButton" id="conversations_back">
-                <property name="can_focus">False</property>
                 <property name="receives_default">False</property>
                 <property name="valign">center</property>
                 <property name="use-underline">True</property>
@@ -88,7 +79,6 @@
                 <child>
                   <object class="GtkImage" id="conversations_back_image">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="icon_name">go-previous-symbolic</property>
                     <property name="icon_size">1</property>
                   </object>
@@ -98,7 +88,6 @@
             <child>
               <object class="GtkButton" id="compose_new_message_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes" context="tooltip">Compose Message</property>
@@ -107,7 +96,6 @@
                 <child>
                   <object class="GtkImage" id="compose_new_message_image">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="icon_name">text-editor-symbolic</property>
                   </object>
                 </child>
@@ -116,7 +104,6 @@
             <child>
               <object class="GtkToggleButton" id="search_conversations_button">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="focus_on_click">False</property>
                 <property name="receives_default">False</property>
                 <property name="tooltip_text" translatable="yes">Toggle search bar</property>
@@ -124,7 +111,6 @@
                 <child>
                   <object class="GtkImage" id="search_conversations_image">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="icon_name">preferences-system-search-symbolic</property>
                   </object>
                 </child>
@@ -147,7 +133,6 @@
     <child>
       <object class="GtkSeparator" id="conversations_separator">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <style>
           <class name="sidebar"/>
diff --git a/ui/password-dialog.glade b/ui/password-dialog.glade
index 7b6a0f60..c56cfe04 100644
--- a/ui/password-dialog.glade
+++ b/ui/password-dialog.glade
@@ -3,7 +3,6 @@
 <interface>
   <requires lib="gtk+" version="3.10"/>
   <object class="GtkDialog" id="PasswordDialog">
-    <property name="can_focus">False</property>
     <property name="border_width">6</property>
     <property name="resizable">False</property>
     <property name="modal">True</property>
@@ -11,20 +10,17 @@
     <property name="has_resize_grip">False</property>
     <child internal-child="vbox">
       <object class="GtkBox" id="dialog-vbox1">
-        <property name="can_focus">False</property>
         <property name="margin_top">6</property>
         <property name="orientation">vertical</property>
         <property name="spacing">12</property>
         <child>
           <object class="GtkBox" id="box1">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="border_width">6</property>
             <property name="spacing">15</property>
             <child>
               <object class="GtkImage" id="image1">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="yalign">0</property>
                 <property name="icon_name">dialog-password-symbolic</property>
                 <property name="use_fallback">True</property>
@@ -39,13 +35,11 @@
             <child>
               <object class="GtkBox" id="box2">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="orientation">vertical</property>
                 <property name="spacing">12</property>
                 <child>
                   <object class="GtkLabel" id="primary_text_label">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="xalign">2.2351741291171123e-10</property>
                     <property name="yalign">0</property>
                     <property name="label">(set in password-dialog.vala)</property>
@@ -62,12 +56,10 @@
                 <child>
                   <object class="GtkGrid" id="grid">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="row_spacing">6</property>
                     <property name="column_spacing">6</property>
                     <child>
                       <object class="GtkLabel" id="label: smtp">
-                        <property name="can_focus">False</property>
                         <property name="no_show_all">True</property>
                         <property name="margin_bottom">4</property>
                         <property name="xalign">0</property>
@@ -86,7 +78,6 @@
                     <child>
                       <object class="GtkLabel" id="label for: username">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Username</property>
                         <style>
@@ -103,7 +94,6 @@
                     <child>
                       <object class="GtkLabel" id="label for: password">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Password</property>
                         <style>
@@ -120,7 +110,6 @@
                     <child>
                       <object class="GtkLabel" id="label: username">
                         <property name="visible">True</property>
-                        <property name="can_focus">False</property>
                         <property name="xalign">0</property>
                         <property name="label">(set in password-dialog.vala)</property>
                       </object>
@@ -134,7 +123,6 @@
                     <child>
                       <object class="GtkEntry" id="entry: password">
                         <property name="visible">True</property>
-                        <property name="can_focus">True</property>
                         <property name="hexpand">True</property>
                         <property name="visibility">False</property>
                         <property name="invisible_char">•</property>
@@ -151,7 +139,6 @@
                       <object class="GtkCheckButton" id="check: remember_password">
                         <property name="label" translatable="yes">_Remember password</property>
                         <property name="visible">True</property>
-                        <property name="can_focus">True</property>
                         <property name="receives_default">False</property>
                         <property name="halign">end</property>
                         <property name="use_underline">True</property>
@@ -188,14 +175,12 @@
         </child>
         <child internal-child="action_area">
           <object class="GtkButtonBox" id="dialog-action_area1">
-            <property name="can_focus">False</property>
             <property name="valign">end</property>
             <property name="layout_style">end</property>
             <child>
               <object class="GtkButton" id="cancel_button">
                 <property name="label" translatable="yes">_Cancel</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="receives_default">False</property>
                 <property name="use_underline">True</property>
               </object>
@@ -209,7 +194,6 @@
               <object class="GtkButton" id="authenticate_button">
                 <property name="label" translatable="yes">_Authenticate</property>
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
                 <property name="can_default">True</property>
                 <property name="receives_default">True</property>
                 <property name="use_underline">True</property>
diff --git a/ui/problem-details-dialog.ui b/ui/problem-details-dialog.ui
index e20db057..09e1625a 100644
--- a/ui/problem-details-dialog.ui
+++ b/ui/problem-details-dialog.ui
@@ -4,7 +4,6 @@
   <requires lib="gtk+" version="3.20"/>
   <requires lib="libhandy" version="0.0"/>
   <template class="DialogsProblemDetailsDialog" parent="GtkDialog">
-    <property name="can_focus">False</property>
     <property name="default_width">800</property>
     <property name="default_height">500</property>
     <property name="modal">True</property>
@@ -13,20 +12,17 @@
     <child type="titlebar">
       <object class="GtkHeaderBar">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="title" translatable="yes" comments="Dialog title for displaying technical details of a problem. Same as the button that invokes it.">Details</property>
         <property name="show_close_button">True</property>
         <child>
           <object class="GtkToggleButton" id="search_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for problem report button">Search for matching log entries</property>
             <property name="action_name">win.toggle-search</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">edit-find-symbolic</property>
               </object>
             </child>
@@ -38,7 +34,6 @@
         <child type="title">
           <object class="GtkStackSwitcher">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="stack">stack</property>
           </object>
         </child>
@@ -46,7 +41,6 @@
           <object class="GtkButton" id="save_as_button">
             <property name="label" translatable="yes" comments="Button label for saving problem report information">Save As</property>
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for problem report button">Save logs entries and details</property>
             <signal name="clicked" handler="on_save_as_clicked" swapped="no"/>
@@ -62,14 +56,12 @@
         <child>
           <object class="GtkButton" id="copy_button">
             <property name="visible">True</property>
-            <property name="can_focus">True</property>
             <property name="receives_default">True</property>
             <property name="tooltip_text" translatable="yes" comments="Tooltip for problem report button">Copy to clipboard</property>
             <property name="action_name">win.copy</property>
             <child>
               <object class="GtkImage">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="icon_name">edit-copy-symbolic</property>
               </object>
             </child>
@@ -85,12 +77,10 @@
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="border_width">0</property>
-        <property name="can_focus">False</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkStack" id="stack">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <signal name="notify::visible-child" handler="on_visible_child_changed" swapped="no"/>
           </object>
           <packing>