add: accountManager.removeIncomingServerListener(gThreePaneIncomingServerListener); 
context: function OnUnloadMessenger(){  OnMailWindowUnload();}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/d6b386e62aacde5f60d7a5daec7ecef70abf4081/msgMail3PaneWindow.js/clean/mailnews/base/resources/content/msgMail3PaneWindow.js