I've been trying to fix this for over an hour and I'm stumped. I tried a bunch of suggestions that came up on google, and nothing really fixed it. Basically whats happening is, when I go to youtube and click on a video, nothing loads. I can right click on it and say "open in new tab", and the video will play. But none of the comments load, and clicking on the videos on the right hand side, or the youtube icon to bring me back to the home page, does nothing. I restarted my computer, I uninstalled and reinstalled Firefox, I cleaned out the cache, I started it in safe mode, I disabled the addons one by one, nothing. I was able to use it no problem on Chrome. The only thing that sort of works is, I cleaned the cookies out, which signed me out of youtube, and all the videos play and the comments load. Everything works. But as soon as I sign in to my youtube, same problems again. I'm at a loss. Please help.