As you probably know, the latest Adobe Flash Player is available on Linux only via Google Chrome (it's bundled with it) while other browsers such as Firefox are stuck with an old 11.2 version.
The Adobe Flash Player plugin that's bundled with Google Chrome is in the form of a PPAPI (or Pepper Plugin API) plugin and Mozilla isn't interested in adding support for it. Because of this, Rinat Ibragimov has developed Fresh Player Plugin, a wrapper that allows Linux users to use Pepper Flash from Google Chrome in Firefox and other NPAPI-compatible browsers.
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