Firefox was not acting correctly so I decided to uninstall and reinstall. After the uninstall, the software asked to reboot the system. I did so and downloaded the new install file and ran. After selecting a standard install, the message that a reboot was required to clear a previous version. I selected reboot now but I get the same message. I even found an install file for an old version and get the same message. I have cleared the registry of all references/keys related to firefox and mozilla with the same result. What do I do now?