The 2nd of multiple simultaneous sessions doesn't work properly.
With Firefox 4 running, I start another Firefox session (from Wind0ws). The window of the new session is blank, and I have to click on the "house" icon even to bring up the home page! At that point, navigating to sites by clicking on links does not necessarily change the URL appearing in the "Awesome Bar," and the "Back" button is apparently forever disabled. This only applies to the multiple sessions, and not the first one.
With Firefox 4 running, I start another Firefox session (from Wind0ws). The window of the new session is blank, and I have to click on the "house" icon even to bring up the home page! At that point, navigating to sites by clicking on links does not necessarily change the URL appearing in the "Awesome Bar," and the "Back" button is apparently forever disabled. This only applies to the multiple sessions, and not the first one.