Hi rtebge, It sounds like you: Found a fake Firefox update https://support.mozilla.org/en-US/kb/i-found-fake-firefox-update You will need to: Troubleshoot Firefox issues caused by malware https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no Then do a Clean Install: Note: A clean install will not delete your bookmarks, saved passwords, add-ons or other personal information. This information is stored separately in your profile folder. Here's how to do a clean install of Firefox: Uninstall Firefox from your computer. Delete the Firefox installation folder (located in one of these folders by default): C:\Program Files\Mozilla Firefox C:\Program Files (x86)\Mozilla Firefox (If you have one - run a Registry cleaner) Restart your computer. Download a fresh copy of Firefox at https://www.mozilla.org/en-US/firefox/new/?utm_campaign=footer&utm_medium=referral&utm_source=support.mozilla.org (There is a link to get Firefox in a different language, if you like.) Double-click on the downloaded file and follow the prompts to continue the installation process.

I agree.