diff --git a/mailnews/base/resources/content/messenger.xul b/mailnews/base/resources/content/messenger.xul
index 70ef6fa81148..f5c5b8062b12 100644
--- a/mailnews/base/resources/content/messenger.xul
+++ b/mailnews/base/resources/content/messenger.xul
@@ -125,45 +125,47 @@ Rights Reserved.
     <menubar id="mailMenubar"/>
   </toolbox>
 
-	<box style="height:100px" flex="1">
+    <box style="height:100px" flex="1">
 
-		<box id="sidebar-box">
-			<sidebarheader type="box" class="sidebarheader-main" value="&mail-sidebar-header.label;"/>
-			<tree id="folderTree" flex="1000" context="folderPaneContext"  />
-		</box>
-          
-		<splitter id="sidebar-splitter"/>
+        <box id="sidebar-box">
+            <sidebarheader type="box" class="sidebarheader-main" value="&mail-sidebar-header.label;"/>
+            <tree id="folderTree" flex="1000" context="folderPaneContext"  />
+        </box>
+         
+        <splitter id="sidebar-splitter"/>
 
-		<box orient="vertical" flex="1">
+        <box orient="vertical" flex="1">
 
-		  <box id="accountCentralBox" orient="vertical" flex="1">
-                     <iframe name="accountCentralPane" flex="1" src="about:blank"/>
-                  </box>
+            <box id="accountCentralBox" orient="vertical" flex="1">
+                 <iframe name="accountCentralPane" flex="1" src="about:blank"/>
+            </box>
 
-		  <box id="messagesBox" orient="vertical" flex="1">
-     
-			<tree id="threadTree" flex="2" persist="height" style="height:0px" context="threadPaneContext"  focusring="false"/>
-
-			<!-- if you change this id, please change GetThreadAndMessagePaneSplitter() and MsgToggleMessagePane() -->
-			<splitter collapse="after" persist="state" onclick="OnClickThreadAndMessagePaneSplitter()"
-                id="threadpane-splitter" orient="vertical" autostretch="never">
-        <grippy/>
-      </splitter>
-			
-			<box id="messagepanebox" align="vertical" flex="3" persist="collapsed height" class="window-focusborder" focusring="false" onclick="contentAreaClick(event);" ondraggesture="nsDragAndDrop.startDrag(event, contentAreaDNDObserver);">
-				<toolbox id="msgHeaderView"/>
-    
-				<iframe id="messagepane" context="messagePaneContext" style="height: 0px" flex="1" name="messagepane" type="content-primary" src="about:blank"/>
-			</box>	
-			<statusbar id="status-bar" class="mailwindow-statusbar">
-				<statusbarpanel id="unreadMessageCount" style="min-width: 5px"/>
-				<statusbarpanel id="totalMessageCount" style="min-width: 5px"/>
-			</statusbar>
-		  </box>
+            <box orient="vertical">
+                <box id="messagesBox" orient="vertical" flex="1">
+                    <tree id="threadTree" flex="2" persist="height" style="height:0px" context="threadPaneContext"  focusring="false"/>
+                    <!-- if you change this id, please change GetThreadAndMessagePaneSplitter() and MsgToggleMessagePane() -->
+                    <splitter collapse="after" persist="state" onclick="OnClickThreadAndMessagePaneSplitter()" id="threadpane-splitter" orient="vertical" autostretch="never">
+                    <grippy/>
+                    </splitter>
+	
+                    <box id="messagepanebox" align="vertical" flex="3" persist="collapsed height" class="window-focusborder" focusring="false" onclick="contentAreaClick(event);" ondraggesture="nsDragAndDrop.startDrag(event, contentAreaDNDObserver);">
+                        <toolbox id="msgHeaderView"/>
+  
+                        <iframe id="messagepane" context="messagePaneContext" style="height: 0px" flex="1" name="messagepane" type="content-primary" src="about:blank"/>
+                    </box>	
                 </box>
 
-	</box>
+                <box id="statusBarBox" orient="vertical">
+                    <statusbar id="status-bar" class="mailwindow-statusbar">
+                        <statusbarpanel id="unreadMessageCount" style="min-width: 5px"/>
+                        <statusbarpanel id="totalMessageCount" style="min-width: 5px"/>
+                    </statusbar>
+                </box>
+            </box>
 
-	<box id="taskbar" class="toolbox-bottom"/>
+        </box>
+    </box>
+
+    <box id="taskbar" class="toolbox-bottom"/>
 
 </window>