diff --git a/mozilla/webtools/bugzilla/template/en/default/global/header.html.tmpl b/mozilla/webtools/bugzilla/template/en/default/global/header.html.tmpl
index 95cda45d0c1..a25cf70dc18 100644
--- a/mozilla/webtools/bugzilla/template/en/default/global/header.html.tmpl
+++ b/mozilla/webtools/bugzilla/template/en/default/global/header.html.tmpl
@@ -202,6 +202,8 @@
       [% IF javascript_urls.grep('yui/').size %]
         <script type="text/javascript">
           YAHOO.namespace('bugzilla');
+          if( YAHOO.env.ua.gecko )
+            YAHOO.util.Event._simpleRemove(window, "unload", YAHOO.util.Event._unload);
         </script>
       [% END %]
     [% END %]