Hi, assuming you have restarted Firefox after updating Flash, and if there is an extra version in your PC's programs which you can't uninstall, you may need to do it from [https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html here,] then do a fresh reinstall if necessary from [https://get.adobe.com/flashplayer/otherversions/ here.] ''If your question is resolved by this or another answer, please take a minute to let us know. Thank you.''