HEVC support

[Austin_Conlon]

Would like to see this!

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[matteo]

Will you ever insert a plugin for h265 videos? Thanks.

[Jon]

Similar idea here: Please support HEVC (H.265) decoding in Windows 11 (22H2 and later). 

[wutongtaiwan]

Firefox should support hevc encoding

There are some videos that support hevc encoding, but it is said that Firefox does not support it at the moment, resulting in lag in video playback, it is recommended to support hevc/h.265 as soon as possible

[Jon]

(Note: similar ideas have been merged into this thread)

[Milectric]

Really still no support? Chrome, Edge, Opera... all of them have no problem to play this codec.

Firefox... when?

[itskaren]

Hi everyone!

Thank you for your patience on this. I want to share a head's up on HEVC support on Firefox. The short answer? It's in the works.

The long answer? We are building two lines of HEVC support: (1) HEVC for copyrighted TV shows and films on your favorite streaming platforms (such as Netflix, Amazon Prime Video, Disney+, etc.), and (2) HEVC for generic, uncopyrighted video. As of now, we're prioritizing the first line.

At the moment, our plan is to ship this streaming platform line of HEVC as part of our new media pipeline later this half. However, if you'd like to try it out, the support is currently available in our early Beta 129 channel!

Generic HEVC video support is available, but only on our Nightly channel - we will revisit bringing this to our Beta and Release channels once we ship our new pipeline.

Thank you again!

[wutongtaiwan]

@itskaren Is it currently available at nightly 130

[wutongtaiwan]

@itskaren When is the second line of support expected to be completed, and in what release?

[wutongtaiwan]

@itskaren Can AVS2 and AVS3 video encoding standards be supported?

[Anonymous]

Is there an ETA on roll out?

[earthjasonlin]

@wutongtaiwanwhere can i enable it? I'm using the 131 nightly and https://html5test.co/ says it doesn't support H265, Ogg Theora and MPEG-4 ASP

[earthjasonlin]

@wutongtaiwanwhere can i enable it, im using the latest 131.0 nightly and https://html5test.co/ tells me it doesn't support it

[wutongtaiwan]

@earthjasonlinI don't know.It should be that Firefox does not have this feature yet

[itskaren]

Hi @wutongtaiwan--apologies for the delay, I can answer a couple of your questions now and follow up on the third one after checking with my engineers.

1. HEVC support (for DRM video content only) should be available in Nightly 130. If you are encountering any issues, please file a bug on Bugzilla.com--I'm flagging the issue @earthjasonlin brought up to my engineers and will follow up with a clarification as soon as I can.  
2. We're still evaluating usage of HEVC for non-DRM content--if it becomes compelling enough, we will prioritize it. We have the technical foundation for support, but we have not committed to a specific release at the moment.