Bug 422528 - History menu extends (entries multiplied and not between dividers). Patch by Marco Bonardo [mak77] <mak77@supereva.it>, r=me.

browser/components/places/content/menu.xml

@@ -590,7 +590,7 @@
             // just add to the end.
             if (aParentPopup._endMarker != -1)
               aParentPopup.insertBefore(element,
-                                        aParentPopup.childNodes[this._endMarker++]);
+                                        aParentPopup.childNodes[aParentPopup._endMarker++]);
             else
               aParentPopup.appendChild(element);
           }

browser/components/places/content/utils.js

@@ -1922,8 +1922,8 @@ var PlacesUtils = {
       // skip the empty menu item
       if (aPopup._emptyMenuItem != items[i]) {
         aPopup.removeChild(items[i]);
-        if (this._endMarker > 0)
-          --this._endMarker;
+        if (aPopup._endMarker > 0)
+          --aPopup._endMarker;
       }
     }