I installed Adobe FlashPlayer 10 with Plug In and Adobe Flash Player Active X. I also installed Adobe Shockwave(for certain applications which requested it) and the trouble started. While running some video and audio feeds, sooner or later I got the message "Shockwave has crashed". So I deleted it, using Revo Uninstaller, which not only removed the program, but all files and links connected to it. Just to make sure, I ran a search on Shockwave and found nothing. I STILL GET THE CRASH!!!
What to do? It only happens with streams, BTW. Not with clips.

Try completely removing all Adobe Flash/Shockwave products, reinstall Flash Player after updating .NET Framework and Firefox to the latest versions.

Might be worth also getting spybot The home of Spybot-S&D! and doing a full scan.

Believe me, I've done everything you said and have the latest edition of Firefox(I use Google Chrome mostly, but Firefox sometimes). I use Malware for a full scan and I use CC Cleaner and PC Tuneup, as well.
I'm back to Square One.