I started work on 46848 (making *all* listeners at the webbrowser level register via nsIWebBrowser::AddWebBrowserListener(). if a listener impl didn't support multiple listeners, I was going to add that support) , I realized some listeners don't warrant multiple listener capability (and described these cases in the URL below). So, unless there is objection, I'm going to invalidate 46848. Jud http://www.mozilla.org/projects/embedding/listeners.html
