firefox functions normally on all the web sites visited except this free movie web site" icefilms.info". It consist of streaming megavideos/megaupload movies using a divx media player. Every time I try to stream a movie, firefox hangs with no responds to any function command so I use force quit application on my imac computer shut down the browser most of the time but if I'm patient after couple of minutes the movie start playing and some of the browser functions work but it hangs and sometime it crash.