When ever I am watching a video on youtube, or twitch, I get adobe flash player has crashed, or the shockwave plugin has stopped working. I have been dealing with this issue for months, and I can not get it resolved on my own. I am currently using firefox as my web browser, on windows 7 64 bit. I found this link on mozzilas website, but I am unsure how to complete this action. Any help would be greatly appreciated, thank you!