Upgraded PFF to 126.96.36.199. on flash drive. Had no problem.
Needed to uninstall regular FF from my hard drive. Went to uninstall and the uninstaller was pointing to my flash drive and wouldn't do anything, got an error. This was apparently caused by the install on the flash drive.
Only way I could make uninstall on hard drive version work was to reinstall ff on hard drive and then do an uninstall.
What did I do wrong?