rem: searchBox.focus(); 
add: if (searchBox) searchBox.focus(); 
context: function asyncFocusSearchBox(event){  var sidebar = document.getElementById("sidebar");  var searchBox = sidebar.contentDocument.getElementById("search-box");  searchBox.focus();  sidebar.removeEventListener("load", asyncFocusSearchBox, true); }
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/f60706e4d834e5f3a479bf380f7c1c663d8b70b8/browser.js/clean/browser/base/content/browser.js