Recently I've been having more and more problems with Firefox. It started off happening just once a couple of weeks ago. Now it's happening every day. I open Firefox and my homepage, which is Yahoo!, comes up strange. It is not a normal page. It's all messed up, and I don't quite know how to explain it. There are no pictures or anything and everything is listed on the left side of the page. When I visit Facebook, MySpace, or deviantART it messes up, too. On Facebook, it won't allow me to 'like' things, check my messages, comment on anything, update my status, and things of this nature. On MySpace, it usually does what my homepage does - but it will return to mostly normal after I've repeatedly refreshed it. However, my feed never comes up at all. deviantART hasn't been too much of a problem. I've only had one actual incident with it. But the page was FAR from normal; pretty much like with MySpace and my homepage. On several other sites, my avatars won't show up or certain things will be missing completely. What is going on and how can I fix this? Please help.