add: msgCompose.UnregisterStateListener(stateListener); 
context: function ComposeUnload(calledFromExit){	dump("\nComposeUnload from XUL\n");		if (msgCompose && msgComposeService)		msgComposeService.DisposeCompose(msgCompose, false);	//...and what's about the editor appcore, how can we release it?}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/d072f7521204169450b1b6d68c37479e5fd1c29d/MsgComposeCommands.js/buggy/mailnews/compose/resources/content/MsgComposeCommands.js