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/ebebc5461df07c3ddace6f8b07d8b4225d01f676/addressbook.js/clean/mail/components/addrbook/content/addressbook.js