Need Drastic WIndows Media Player Help!!!

Everytime I try to view inbedded media player content on ANY browser (Internet Explorer, Firefox, Opera) it gives me the same "Windows Media Player Dynamic Link Library" "plugin has performed an illegal operation we suggest you restart browser". I have tried removing and reinstalling codecs, re-installing internet explorer, uninstalling windows media player 10 back to 7.1 (which I was only able to do after I had to log in under safe mode to fully get rid of it from program files) and then reinstalling it back to 9 or 10, yet it still registered at 10 no matter what! Now the only result I see is that now Firefow asks me for the windows plugin every time and when I go to download plugins it is unknown. I am at a loss for what to do? Does ANYBODY have any idea how to fix this?