rem: m.addEventListener("command", function() { for (var i = 0; i < undoItems.length; i++) undoCloseTab(); }, false); 
add: function (event) { FeedHandler.onLinkAdded(event); }, 
context:   m.addEventListener("command", function() {    for (var i = 0; i < undoItems.length; i++)      undoCloseTab();  }, false);
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/842c8ce63687e858eae1fb17693f18960f1ebdf7/browser.js/buggy/browser/base/content/browser.js