latest version of Flash on Firefox for Linux

Mozilla will stop supporting most browser plugins in Firefox by the end of 2016 . But for Linux users, that won’t make a major difference for one of the biggest plugins in the browser world—Adobe Flash.
You may not know it, but Adobe axed most support for Flash in Firefox on Linux back in 2012. Fear not, though: An open-source wrapper allows Firefox to use the fresh Flash code that Adobe’s still pumping out for other browsers.

Fresh Player Plugin to the rescue

If you want the latest version of Flash in Firefox, the Linux community has come to the rescue. Fresh Player Plugin is an open-source PPAPI-to-NPAPI compatibility layer. Basically, it’s a way to use the up-to-date Pepper version of Flash for Linux in Firefox on Linux. It can even use hardware-accelerated decoding of videos on the latest Linux distributions, including Ubuntu 14.10 and 15.04.

Fresh Player Plugin has now been in development for more than a year, and it should be fairly stable for most people. It doesn’t implement any sandboxing, however, meaning that all those Pepper sandboxing security benefits aren’t available to Firefox users, so beware. It’s still safest to run the latest version of Flash in a Chromium-based browser like Chrome, Chromium itself, or Opera.