rem: setTimeout(function() { self.asyncUpdateUI(); }, 0); 
add: function () { return browser.warnAboutClosingTabs(true); }); 
context:       setTimeout(function() { self.asyncUpdateUI(); }, 0);
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/3282b8b9f433b0426629d595e5c5ad19bc2a75e5/browser.js/buggy/browser/base/content/browser.js