rem: var messenger = Components.classes["@mozilla.org/messenger;1"].createInstance(Components.interfaces.nsIMessenger); messenger.SetWindow(window, null); messenger.OpenURL(url); 
add:  try { window.location = url; } catch (ex) {} 
context: function LaunchUrl(url){  var messenger = Components.classes["@mozilla.org/messenger;1"].createInstance(Components.interfaces.nsIMessenger);  messenger.SetWindow(window, null);  messenger.OpenURL(url);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/eb4ca96c5ae3ad5b921c0d1766aa92be64feecb2/addressbook.js/clean/mailnews/addrbook/resources/content/addressbook.js