Well, I'm Back: Video, Freedom And Mozilla - why Firefox does not include support for H264. I personally think it would be better to use the technically available codecs of the installed system and leave it up to the user which codecs they want to have. I do understand Mozilla's argumentative position on this matter, but I think it could be rather negative for the spread of Firefox in this case - or in the long run could lead to a fork of Firefox and Firefox+OS codecs. His arguments about "pushes software freedom issues from the browser to the platform" are, in my opinion, nonsense - because he himself writes about the Flash video fallback, which requires a non-free Flash plugin ...