When I go to Netflix.com and click on a "play instantly" movie or show a microsoft siverlight message come up saying "Thanks for installing, please restart your browser to watch this movie", I have had siverlight installed on my laptop for months now and watch many, many movies and shows on netflix through firefox and just recently it started doing this. Now firefox will not play ANY videos that stream from online. When I open the same videos on other browsers they play fine, so the problem is with firefox and not my laptop. Can anyone help with this?