H.264 Support Lands in Firefox 20 Nightly on Windows

This is a very important step: Firefox 20 Nightly on Windows now supports H.264 codec through the Windows’ Media Foundation. As reported earlier, Mozilla has decided to bring OS-dependent support for H.264 in Firefox to avoid dependency on third-party plug-ins like Flash.

This feature is not enabled by default yet, and users need to set windows-media-foundation to true in about:config preferences. Latest nightly build can be downloaded from here for testing purposes.

firefox-h264-codec

Firefox for Android 4.x already supports hardware and software level H.264 decoding, and the FirefoxOS would have hardware decoding support for H.264 codec.

Screenshots:

firefox-h264-codec-test
(test on HTML5Test.com confirms H.264 support)

firefox-h264-play
(no plug-in required! )

  (Thanks @PaulRouget for the tip)

Also Read: Video, Mobile, and the Open Web by Brendan Eich