The real "problem" is that Adobe keeps releasing updates for the Flash Player - like a dozen new versions in the last 8 or 9 months, extending well back into 201'''4'''. Flash has its own internal updater, but the updates don't seem to occur ''(I see this on 4 Windows PC's' that I am responsible for maintaining)'' automatically when the device is run in a "regular user account" or only updates automatically in an Admin "user account". And a user-triggered manual update isn't present in Flash; the only "choice" in Flash is to "check monthly", which these days just doesn't make sense when Flash updates are released more frequently than that. ''iirc, previous to mid-2014 Adobe Flash rarely updated, and may have gone an entire year without releasing any new versions with security patches in the years 2011 - 2013. Plus things might seem a lot worse now since Mozilla created that Plugin Check page / system to notify users when their Plugins are out-of-date and might be posing a security risk. And the information provided there "leaves a bit to be desired" for the average user ''(my feeling is that it mis-informs the less sophisticated users by indicating that Mozilla is involved in the update procedure for Flash and other plugins - not just merely providing information about how to proceed.)'' --------------------- My advice is to use this page for getting Flash "updates". https://www.adobe.com/products/flashplayer/distribution3.html Download the full '''EXE Installer''' for Windows > '''''Plugin-based browsers''''' - close Firefox then run the Flash installer.