http://www.theregister.co.uk/2012/06/18 … s_firefox/
First on the remediation list involves RealPlayer.
http://support.mozilla.org/en-US/kb/fla … eo-firefox
Flash Player 11.3 Uninstaller
http://helpx.adobe.com/flash-player/kb/ … ndows.html
Flash Player 11.2 bundles:
32bit http://fpdownload.macromedia.com/pub/fl … _32bit.exe
32bit ActiveX http://fpdownload.macromedia.com/pub/fl … _32bit.exe
64bit http://fpdownload.macromedia.com/pub/fl … _64bit.exe
64bit ActiveX http://fpdownload.macromedia.com/pub/fl … _64bit.exe 
Flash Player self-update checking seems to occur two or more times in a single day.
I note that it even occurred at the end of uninstallation of the product. 