So my XP computer's power supply died a few weeks ago so I got a new computer. Just replaced the powersupply in the old PC to get my old files. I tried to back up my Firefox profile from my old computer to the new Windows 7 computer, which I've had running Firefox for about a week. When I loaded my backed up profile and restarted Firefox, it seems to have reverted to the style of the old Firefox, or at least the current version that was running on my XP computer. How can I keep my old profile, with the new look of Firefox that I've grown to love over the past week??