DougieLawson wrote:What's the package called? I want to forcibly disable its installation.
It's included as part of a generic package called rpi-chromium-mods, so you can't really disable its installation without losing various other bits of useful functionality. But the library is not loaded until a website requests it, and is blocked from executing by default unless the user enables it.
If you really don't want it on your system, just delete the file /usr/lib/chromium-browser/libpepflashplayer.so - that is the sole Flash file installed. I would suggest you also remove the associated CHROMIUM_FLAGS in the /usr/bin/chromium-browser startup script, or Chromium may hang when attempting to load a non-existent Flash library when sites try to use it.
The library file will be installed on all versions of the Pi by an update of rpi-chromium-mods, but the browser startup script does not supply the necessary flags for Chromium to use it when run on Pi 1 or Pi 0, so the file will never be accessed on those platforms.
For reference, the reason for the addition of Flash is that Scratch version 2.0 is Flash-based and cannot be run in any other fashion at present, and we have been under a lot of pressure to support the new version of Scratch. This is going to become the default way Scratch is run at some point in the future, so if you want to use Scratch, you may need to overcome your dislike of Flash - or to prevail upon the team at MIT to change their mind...