I knew it. I shouldn't have imported the settings so rashly. It took me a failed login on ff.net to find out my Firefox is broken. In the end, I had to uninstall and reinstall Firefox and configure everything from scratch, including the extensions. Luckily, it didn't take very long as I had written down the list of extensions before hand.

I'll have to run to a couple of different places to add in the cookie and adblock settings, but otherwise everything is fine now. The lesson for the day? Disable all extensions before uninstalling the old version. I learned it the hard way. -__-

On a side note, Mozilla ported beautifully without any problem. Nice lizard. *pat Mozilla on head* ^__^