Bug 534172 - Tab list should be cleared at popuphidden, not at popuphiding. r=Enn

--HG--
extra : rebase_source : e201ed7db24d6f862575809756e68a4d551393db

browser/base/content/tabbrowser.xml

@@ -3398,7 +3398,7 @@
         this._updateTabsVisibilityStatus();
       ]]></handler>
 
-      <handler event="popuphiding">
+      <handler event="popuphidden">
       <![CDATA[
         // clear out the menu popup and remove the listeners
         while (this.hasChildNodes()) {