rem: if (aTarget.localName == "bookmarks-toolbar") { var ptf = document.getAnonymousElementByAttribute(aTarget, "anonid", "bookmarks-ptf"); if (ptf.hasChildNodes()) ptf.lastChild.removeAttribute("dragover-right"); } else if (aTarget.localName == "hbox") { aTarget.lastChild.removeAttribute("dragover-right"); 
add: if (aTarget.localName == "hbox") {   var bt = document.getElementById("bookmarks-toolbar"); var newTarget = bt.getLastVisibleBookmark(); if (newTarget) newTarget.removeAttribute("dragover-right"); } else if (aTarget.localName == "stack") { var bt = document.getElementById("bookmarks-toolbar"); var newTarget = bt.getLastVisibleBookmark(); newTarget.removeAttribute("dragover-right"); 
context:   onDragRemoveFeedBack: function (aTarget)  {     if (aTarget.localName == "bookmarks-toolbar") {      var ptf = document.getAnonymousElementByAttribute(aTarget, "anonid", "bookmarks-ptf");      if (ptf.hasChildNodes())        ptf.lastChild.removeAttribute("dragover-right");    } else if (aTarget.localName == "hbox") {      aTarget.lastChild.removeAttribute("dragover-right");    } else {      aTarget.removeAttribute("dragover-left");      aTarget.removeAttribute("dragover-right");      aTarget.removeAttribute("dragover-top");      aTarget.removeAttribute("dragover-bottom");    }  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a14a5b7eb9c506cf7ce1d0170c56c318aeb47322/browser.js/buggy/browser/base/content/browser.js