I'm having a problem with viewing videos in full screen - they are skippy as hell. I'm on a dell Inspiron 7000 series. All drivers and bios are updated and current. I've run diagnostics and they all check out as ok, This doesn't happen with other browsers. I've disabled hardware acceleration both in Firefox and in Flash. I've changed all of the about:configs recommended in another post to true. (actually, they were already set to true). Change the value of media.webm.enabled to true Change the value of media.mediasource.enabled to true Change the value of media.mediasource.webm.enabled to true None of this has helped. Thank you.