I get that a lot on Firefox..I have no idea why but yes its very annoying and I will have to reboot firefox in order for any kind of flash site to work again
See ‘solution’ in post 4.
Post 8 sounds like a viable solution.
However, since the problem is with their updater program, maybe the best solution is to do both post 4 and post 8.
That way the next time it wants to update, you have manual control no matter what.