rem: undoCloseTabItem.addEventListener("command", function() { undoCloseTab(0); }, false); 
add: m.addEventListener("command", function() { for (var i = 0; i < undoItems.length; i++) undoCloseTab(); }, false); 
context:     undoCloseTabItem.addEventListener("command", function() { undoCloseTab(0); }, false);
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/e645a5a672ee97fbd1b7847a5fbfe8916ed6f760/browser.js/buggy/browser/base/content/browser.js