23 Jul 2014

WebVTT Released in Firefox 31

If you haven't seen the release notes WebVTT has finally been released in Firefox 31. I'm super excited about this as it's the culmination of a lot of my own and countless others' work over the last two years. Especially since it has been delayed for releases 29 and 30.

That being said, there are still a few known major bugs with WebVTT in Firefox 31:

  • TextTrackCue enter, exit, and change events do not work yet. I'm working on getting them done now.
  • WebVTT subtitles do not show on audio only elements yet. This will probably be what is tackled after the TextTrackCue events (EDIT: To clarify, I meant audio only video elements).
  • There is no support for any in-band TextTrack WebVTT data yet. If your a video or audio codec developer that wants in-band WebVTT to work in Firefox, please help out :-).
  • Oh, and there is no UI on the HTML5 Video element to control subtitles... not the most convenient, but it's currently being worked on as well.
I do expect the bugs to start rolling in as well and I'm actually kind of looking forward to that as it will help improve WebVTT in Firefox.

- Tagged in mozilla and open-source.

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