unix keybindings for ctrl-shift home/end (bug #43122)

xpfe/communicator/resources/content/unix/platformBrowserBindings.xul

@@ -73,6 +73,18 @@
     var controller = document.commandDispatcher.getControllerForCommand('cmd_paste');
     controller.doCommand('cmd_paste');"/>
 
+
+<key id="key_homectrlshift" keycode="VK_HOME" shift="true" control="true" alt="false"
+    onkeypress="
+        var controller =
+        document.commandDispatcher.getControllerForCommand('cmd_selectTop');
+        controller.doCommand('cmd_selectTop');"/>
+<key id="key_endctrlshift" keycode="VK_END" shift="true" control="true" alt="false"
+    onkeypress="
+        var controller =
+        document.commandDispatcher.getControllerForCommand('cmd_selectBottom');
+        controller.doCommand('cmd_selectBottom');"/>
+
 </keyset>
 
 </keybinding>

xpfe/communicator/resources/content/unix/platformEditorBindings.xul

@@ -113,6 +113,19 @@
   onkeypress="
     var controller = document.commandDispatcher.getControllerForCommand('cmd_selectWordNext');
     controller.doCommand('cmd_selectWordNext');"/>
+
+
+<key id="key_homectrlshift" keycode="VK_HOME" shift="true" control="true" alt="false"
+    onkeypress="
+        var controller =
+        document.commandDispatcher.getControllerForCommand('cmd_selectTop');
+        controller.doCommand('cmd_selectTop');"/>
+<key id="key_endctrlshift" keycode="VK_END" shift="true" control="true" alt="false"
+    onkeypress="
+        var controller =
+        document.commandDispatcher.getControllerForCommand('cmd_selectBottom');
+        controller.doCommand('cmd_selectBottom');"/>
+
 </keyset>
 
 <!-- End Unix-specific keybindings -->