rem: setTimeout(function() { self.asyncUpdateUI(); }, 0); 
add: function () { return browser.warnAboutClosingTabs(true); }); 
context:       setTimeout(function() { self.asyncUpdateUI(); }, 0);
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/33f7e6f49701740cd5f01ff43c8659ec1072bd7c/browser.js/clean/browser/base/content/browser.js