rem: setTimeout("gURLBar.focus();", 0); 
add: if (gURLBar) setTimeout("gURLBar.focus();", 0); 
context: function BrowserOpenTab(){  if (!gInPrintPreviewMode) {    gBrowser.selectedTab = gBrowser.addTab('about:blank');    setTimeout("gURLBar.focus();", 0);   }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/166bdebbc2c280a8dfff12eb87281e3840e3d577/browser.js/clean/browser/base/content/browser.js