Admin, thanks for checking. I did a search for updates on my Firefox 2.0.0.16 and they said there was none. However, I did see the download for 3.0.1 that you say you are using. Makes me scratch my head. I would go ahead and download the one you have, however, I am afraid of losing all my bookmarks, passwords, etc.
I disabled everything from my browser (only had 2 things) because of what Emperor Choop said, and the problem persists.