rem: m.addEventListener("command", function() { for (var i = 0; i < undoItems.length; i++) undoCloseTab(); }, false); 
add: undoCloseTabItem.addEventListener("command", function() { undoCloseTab(0); }, false); 
context:   m.addEventListener("command", function() {    for (var i = 0; i < undoItems.length; i++)      undoCloseTab();  }, false);
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/805c098730dbfab8e9211255c8c93ce25c0474dc/browser.js/clean/browser/base/content/browser.js