Great news! Firefox nightly build, along with all the modern browsers (not IE8 of course), now support the <video> element in the nightly builds.
This is great news but sad to know that only firefox supports this. Why can't we have all the browsers implement advanced tags like this. I hope microsoft will consider adding this to IE as well and chrome and safari will follow too.
No! Like I said in my post, ALL the modern browser DO support this element including Safari and Opera (and Chrome, I think). IE8 is not a modern browser so it does not.