Does Firefox 8 Support mp4?

问题:

Does Firefox 8 (win/64) Support mp4?

I cannot find any mention on MDN of support for mp4 AND it's not playing mp4 files locally on server.

Please advise.

sleeper

回答1:

Firefox does not support the mp3/mp4 technologies, as aspects of them are licensed.

See the 'official' support list for Firefox here: https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements

More about why Firefox avoids it: http://en.wikipedia.org/wiki/MP3#Licensing_and_patent_issues