Bug 430948 - Places:Drag & Drop a Favicon or a Link to Bookmarks Toolbar, Bookmarks Menu or Sidebar Bookmarks does not work. (r=mano, a=damon)

browser/components/places/content/controller.js

@@ -1458,7 +1458,7 @@ var PlacesControllerDragHelper = {
         transactions.push(PlacesUIUtils.ptm.tagURI(uri,[tagItemId]));
       }
       else {
-        if (!this.canMoveContainer(unwrapped.id, null))
+        if (unwrapped.id && !this.canMoveContainer(unwrapped.id, null))
           copy = true;
         else if (unwrapped.concreteId &&
                  !this.canMoveContainer(unwrapped.concreteId, null))