Zynga & Farmville do apparently have many users and so I hope its support site offers accurate information on uninstalling the software. Have you seen * https://support.zynga.com/article/all/Contacting-Zynga-Support ** https://support.zynga.com/article/farmville/Uninstalling-and-Reinstalling-FarmVille-en_US-0000000000000 ** https://support.zynga.com/article/all/Uninstalling-Game-Bar-en_US If you find the are supplying software that interferes with Firefox and is impossible to uninstall please provide full details *What is being installed, Full name and Version? * Where is it downloaded from ? Website and link ? There are possibilities it could be reported as malawre. If it deliberately targets and damages Firefox we may be able to prevent Firefox from downloading it. I did find * http://www.shouldiremoveit.com/Zynga-Toolbar-15417-program.aspx * http://www.overclock.net/t/916492/solved-w7-how-do-i-remove-zynga I note mention of Conduit. The Conduit toolbar is something that does not have a good reputation around this forum, and often is not easy to remove. * See http://malwaretips.com/blogs/remove-conduit-apps-search-and-toolbar/