diff --git a/editor/ui/composer/content/EditorAppShell.xul b/editor/ui/composer/content/EditorAppShell.xul
index d320faffdd61..2d9081c5241f 100644
--- a/editor/ui/composer/content/EditorAppShell.xul
+++ b/editor/ui/composer/content/EditorAppShell.xul
@@ -76,7 +76,7 @@
 
 <window id="main-window" xmlns:html="http://www.w3.org/TR/REC-html40"
 			  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-			  onunload="EditorShutdown()" title="Editor">
+			  onunload="EditorShutdown()" title="Editor" align="vertical">
 
   <html:script language="JavaScript" src="chrome://editor/content/EditorCommands.js">
   </html:script>
diff --git a/editor/ui/composer/content/TextEditorAppShell.xul b/editor/ui/composer/content/TextEditorAppShell.xul
index 07b16626f5ca..2a95f769011f 100644
--- a/editor/ui/composer/content/TextEditorAppShell.xul
+++ b/editor/ui/composer/content/TextEditorAppShell.xul
@@ -20,7 +20,7 @@
 
 <window id="main-window" xmlns:html="http://www.w3.org/TR/REC-html40"
 			  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-			  onunload="EditorShutdown()" title="TextEditor">
+			  onunload="EditorShutdown()" title="TextEditor" align="vertical">
 
   <html:script language="JavaScript" src="chrome://editor/content/EditorCommands.js">
   </html:script>
diff --git a/suite/debugQA/content/debugQATextEditorShell.xul b/suite/debugQA/content/debugQATextEditorShell.xul
index 07b16626f5ca..2a95f769011f 100644
--- a/suite/debugQA/content/debugQATextEditorShell.xul
+++ b/suite/debugQA/content/debugQATextEditorShell.xul
@@ -20,7 +20,7 @@
 
 <window id="main-window" xmlns:html="http://www.w3.org/TR/REC-html40"
 			  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-			  onunload="EditorShutdown()" title="TextEditor">
+			  onunload="EditorShutdown()" title="TextEditor" align="vertical">
 
   <html:script language="JavaScript" src="chrome://editor/content/EditorCommands.js">
   </html:script>