How can I uninstall Firefox 8 if Remove Programs and the uninstall helper.exe don't work?

I need to uninstall Firefox, but when I click "Remove" in Add/Remove Programs, nothing happens. I tried it several times. Add/Remove Programs shows Mozilla Firefox 3.0.6, which is strange since I have 8. I also tried running the helper.exe file in the uninstall folder, and nothing happened. I tried doing all of this after a few reboots as well as in Safe Mode, and had the same result. I searched the online forums, but I did not find anyone with exactly this same problem. I made sure Firefox was not running when I tried to uninstall it (double-checking the processes in Task Manager). I just ran Windows Update and everything else is working fine. I have no Antivirus software running. I closed all programs (down to essential Windows processes) before attempting the steps above. This is the first time I have ever attempted to uninstall Firefox.
Thanks!

You may only see leftover entries in Add and Remove programs, but the listed programs may have been replaced by the updated version. This can happen if the updater didn't remove those old entries.
See http://kb.mozillazine.org/Uninstalling_Firefox

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