--- a/mail/base/content/mailWindowOverlay.xul
+++ b/mail/base/content/mailWindowOverlay.xul
@@ -1036,21 +1036,37 @@
               <menuitem id="appmenu-editmenu-undo"
                         label="&undoCmd.label;"
                         key="key_undo"
                         command="cmd_undo"/>
               <menuitem id="appmenu-editmenu-redo"
                         label="&redoCmd.label;"
                         key="key_redo"
                         command="cmd_redo"/>
-              <menuseparator/>
+              <menuseparator id="appmenu_messageAfterRedoEditSeparator"/>
+              <menuitem id="appmenu_delete"
+                        label="&deleteCmd.label;"
+#ifdef XP_MACOSX
+                        acceltext="⌫"
+#else
+                        key="key_delete"
+#endif
+                        command="cmd_delete"/>
+              <menuseparator id="appmenu_messageAfterDeleteEditSeparator"/>
               <menuitem id="appmenu-editmenu-selectAll"
                         label="&selectAllCmd.label;"
                         key="key_selectAll"
                         command="cmd_selectAll"/>
+              <menuitem id="appmenu_selectThread"
+                        label="&appmenuSelectThread.label;"
+                        key="key_selectThread"
+                        command="cmd_selectThread"/>
+              <menuitem id="appmenu_selectFlagged"
+                        label="&appmenuSelectFlagged.label;"
+                        command="cmd_selectFlagged"/>
             </menupopup>
           </menu>
         </hbox>
         <splitmenu id="appmenu_find"
                    label="&findMenu.label;"
                    command="cmd_find">
           <menupopup id="appmenu_FindPopup">
             <menuitem id="appmenu_findCmd"

--- a/mail/locales/en-US/chrome/messenger/messenger.dtd
+++ b/mail/locales/en-US/chrome/messenger/messenger.dtd
@@ -557,16 +557,18 @@
 <!ENTITY appmenuButton1.tooltip "Display the &brandShortName; Menu">
 
 <!-- AppMenu Popup -->
 <!ENTITY appmenuNewMsgCmd.label "New Message">
 <!ENTITY appmenuNewContactCmd.label "Address Book Contact…">
 <!ENTITY appmenuEditMenu.label "Edit">
 <!ENTITY appmenuQFBMenu.label "Quick Filter Bar">
 <!ENTITY appmenuToolbarLayout.label "Toolbar Layout…">
+<!ENTITY appmenuSelectThread.label "Select Thread">
+<!ENTITY appmenuSelectFlagged.label "Select Starred Messages">
 
 <!-- Tags Menu Popup -->
 <!ENTITY addNewTag.label "New Tag…">
 <!ENTITY addNewTag.accesskey "N">
 <!ENTITY manageTags.label "Manage Tags…">
 <!ENTITY manageTags.accesskey "M">
 
 <!-- Folder Pane -->