'When browsing with Firefox, the Internet user will be prompted to install the Flash Player from freepornix.com. That already should raise an alert; you don’t download the Flash Player from a porn site but from Adobe'
The real Adobe Plugin is located under Tools > Add-ons > Plugins.
go to Firefox Mac Toolbar > Tools > Add-ons > Extensions. and remove Flash Player 11.
Clicking on the "more" button will reveal that this Add-on is NOT the real Adobe Flash Player.