rem: catch(ex) { return false; 
add: else {    var sessionHistory = getWebNavigation().sessionHistory; var entry = sessionHistory.getEntryAtIndex(index, false); var url = entry.URI.spec; openUILinkIn(url, where); return true; 
context: function gotoHistoryIndex(aEvent){  var index = aEvent.target.getAttribute("index");  if (!index)    return false;  try {    getWebNavigation().gotoIndex(index);  }  catch(ex) {    return false;  }  return true;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/865bfc75b23ed219acdbb216fba1abcd6d531fc1/browser.js/buggy/browser/base/content/browser.js