rem: function () { return browser.warnAboutClosingTabs(true); }); 
add: setTimeout(function() { self.asyncUpdateUI(); }, 0); 
context:     function () {      return browser.warnAboutClosingTabs(true);    });
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/d42ba893981e54e10754e38b22ce8b03a17de989/browser.js/clean/browser/base/content/browser.js