diff --git a/mozilla/extensions/irc/xul/content/chatzilla.xul b/mozilla/extensions/irc/xul/content/chatzilla.xul
index e66d5ac0482..3921726f3a1 100644
--- a/mozilla/extensions/irc/xul/content/chatzilla.xul
+++ b/mozilla/extensions/irc/xul/content/chatzilla.xul
@@ -40,7 +40,6 @@
         persist="width height" windowtype="irc:chatzilla">
 
 <script src="chrome://global/content/strres.js"/>
-<script src="chrome://navigator/content/tooltip.js"/>
 <script src="chrome://global/content/nsJSSupportsUtils.js"/>
 <script src="chrome://global/content/nsJSComponentManager.js"/>
 <script src="chrome://global/content/nsUserSettings.js"/>
diff --git a/mozilla/extensions/venkman/resources/content/venkman-scripts.xul b/mozilla/extensions/venkman/resources/content/venkman-scripts.xul
index 77e328d7fac..65c618594ee 100644
--- a/mozilla/extensions/venkman/resources/content/venkman-scripts.xul
+++ b/mozilla/extensions/venkman/resources/content/venkman-scripts.xul
@@ -47,7 +47,6 @@
       ]]>
     </script>
   
-    <script src="chrome://navigator/content/tooltip.js"/>
     <script src="chrome://global/content/nsJSSupportsUtils.js"/>
     <script src="chrome://global/content/nsJSComponentManager.js"/>
     <script src="chrome://global/content/nsUserSettings.js"/>
diff --git a/mozilla/xpfe/browser/jar.mn b/mozilla/xpfe/browser/jar.mn
index db0659b42dc..7f21afcbc81 100644
--- a/mozilla/xpfe/browser/jar.mn
+++ b/mozilla/xpfe/browser/jar.mn
@@ -13,7 +13,6 @@ comm.jar:
         content/navigator/navigatorDD.js               (resources/content/navigatorDD.js)
         content/navigator/nsBrowserStatusHandler.js    (resources/content/nsBrowserStatusHandler.js)
         content/navigator/nsBrowserContentListener.js  (resources/content/nsBrowserContentListener.js)
-        content/navigator/tooltip.js                   (resources/content/tooltip.js)
         content/navigator/urlbarBindings.xml           (resources/content/urlbarBindings.xml)
         content/navigator/navigator.css                (resources/content/navigator.css)
         content/navigator/metadata.xul                 (resources/content/metadata.xul)
diff --git a/mozilla/xpfe/browser/resources/content/tooltip.js b/mozilla/xpfe/browser/resources/content/tooltip.js
deleted file mode 100644
index cd7f28c95e8..00000000000
--- a/mozilla/xpfe/browser/resources/content/tooltip.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* ***** BEGIN LICENSE BLOCK *****
- * Version: NPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.1 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is 
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or 
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the NPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the NPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-function FillInTooltip ( tipElement )
-{
-  var retVal = false;
-  var button = document.getElementById('replaceMe');
-  if ( button ) {
-    var tipText = tipElement.getAttribute('tooltiptext');
-    if ( tipText != "" ) {
-      button.label = tipText;
-      retVal = true;
-    }
-  }
-
-  return retVal;
-}