rem: var newTarget = document.getElementById("bookmarks-ptf").lastChild; 
add: var newTarget = BookmarksToolbar.getLastVisibleBookmark(); 
context:   onDragSetFeedBack: function (aTarget, aOrientation)  {   switch (aTarget.localName) {      case "toolbarseparator":      case "toolbarbutton":        switch (aOrientation) {          case BookmarksUtils.DROP_BEFORE:             aTarget.setAttribute("dragover-left", "true");            break;          case BookmarksUtils.DROP_AFTER:            aTarget.setAttribute("dragover-right", "true");            break;          case BookmarksUtils.DROP_ON:            aTarget.setAttribute("dragover-top"   , "true");            aTarget.setAttribute("dragover-bottom", "true");            aTarget.setAttribute("dragover-left"  , "true");            aTarget.setAttribute("dragover-right" , "true");            break;        }        break;      case "menuseparator":       case "menu":      case "menuitem":        switch (aOrientation) {          case BookmarksUtils.DROP_BEFORE:             aTarget.setAttribute("dragover-top", "true");            break;          case BookmarksUtils.DROP_AFTER:            aTarget.setAttribute("dragover-bottom", "true");            break;          case BookmarksUtils.DROP_ON:            break;        }        break;      case "toolbar":         var newTarget = document.getElementById("bookmarks-ptf").lastChild;        if (newTarget)          newTarget.setAttribute("dragover-right", "true");        break;      case "hbox":      case "menupopup": break;      default: dump("No feedback for: "+aTarget.localName+"\n");    }  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/60ddb744520022b2d795fdb04f9ac4f8966b8765/bookmarksMenu.js/clean/xpfe/components/bookmarks/resources/bookmarksMenu.js