I have a mac, am running version 10.6. I recently updated firefox to version 4.0.1. After updating to the new version, and restarting firefox, it opened to the "welcome to version 4" page here are all the changes, etc, etc, in addition to opening my home page in a separate tab. However, it never stopped doing that. Every time I quit firefox and restart it opens two tabs: one with the welcome page, one with my home page. In the General tab of Preferences it still lists my correct home page as the home page. I have tried changing my homepage to a different website and to a blank page, but whenever I quit and restart it again opens the two tabs (and the homepage gets reset in my preferences back to what it was). Any thoughts?? Thanks!