On many of the sites on Youtube the expand does not work with Mozilla Firefox 4. I have gone to Internet Explorer and they work there. When I come back from Internet Explorer strange enough the expand on Firefox works. Obviously its picking up programming from Internet Explorer, unfortunately it does not last long. I've tried plug ins, reloading flash player after I deleted it and re-installed it, the problem still exist. Also on the expand screens that do work on the right side there is a very thin white line coming down the border. I'm not the only one with this problem. please help with this problem.