What is Simple Way Prevent Flash Plugin Warning in Firefox

I have seen and read several threads about the annoying adobe flash plug-in warning which I get when using Firefox to view videos at BBC but I still have no idea how to replace the existing plug-in or with what.
Please could somebody give this simple soul some clear instructions.
Budgie2

I assume you use flash-player from packman? It is not updated and has security vulnerabilities. You should use flash-plugin from adobe, it is updated.

https://en.opensuse.org/Adobe_Flash_Player

Bo

BTW I tried reaching out to the packman guys, but no response so far:
http://lists.links2linux.de/pipermail/packman/2016-June/014453.html