News sites would probably be the ones that would make you flip over to Chrome, as well as MP3 sites I guess. The Verge falls back properly, as do pretty much al

News sites would probably be the ones that would make you flip over to Chrome, as well as MP3 sites I guess. The Verge falls back properly, as do pretty much all YouTube videos. Most browsers (at least Safari definitely does) do proper full screen too. I'm not sure if the experience would be as good with Firefox as I'm not sure if they support H.264 yet. But I heard that was planned. I'd encourage you to try it for a while - it's free and pretty quick to re-install Flash if it gets too annoying.