HEVC support

[Austin_Conlon]

Would like to see this!

[Jon]

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

[sjimmie]

Will this be working only when the MS HEVC codec is installed, or will it work without this specific codec ?

[deanveloper]

I work in software engineering, where we often take screen recordings. The macOS screen recording software by default records to HEVC, so it would be much appreciated to have HEVC support since many of our developers use Mac, as the alternative is Windows.

[Tolki]

For me HEVC support is important for Immich, where I transcode all my videos to save on bandwith.

All my extended family uses firefox so I currently use AV1, but HEVC would leverage hardware acceleration as well as work on more devices (looking at you iPhone users).

[Xenio]

Please add H265/Hevc for MACOS, all my security cameras are now encoding videos in h265 and it is impossible to use Firefox to watch the stream. 😔

[alwu]

HEVC support on MacOS is already added on Fx136.

[hungarianhc]

I'm on 136b4, and when I go to an HEVC video, it still doesn't play. Anything I'm doing wrong here?

[RichardA]

HEVC is working on Linux for MSE (codec string passed to addSourceBuffer) based video for Firefox 137, 138 beta and Nightly. The problem is that I'm developing an application which is directly using the VideoEncoder and AudioEncoder. Only Firefox Nightly supports HEVC on the VideoEncoder (the codec string used is hvc1.1.4.L153.B0). Hopefully there are plans to implement this functionality on upcoming releases?

[FerKing]

Any updates on this? It's been a year since the supposed start of the work implementing the codec. If not, is there a possible workaround? I am not knowledgeable about it, so I'll be thankful for any response.

[Skimmie]

It’s already working for quite some time, at least on windows. Just install the MS HEVC codec (1 euro) and enable hevc in FF like pointed out in this thread.

[alwu]

HEVC has been enabled on all platforms since Firefox 137.

[FerKing]

Right, I bought the HEVC codec, and it's working now, so now I'm just wondering a couple of things.

Shouldn't the idea be officially closed if support is available?

And while it wasn't an issue, I was surprised I had to go out of my way to acquire the codec for a price, compared to the other codecs like h.264, which were available off the bat. I learned a bit more from snooping around, and saw that software encoding (for hevc) isn't supported, but hardware encoding is, which is (as I understand) the reason why I have to purchase the codec myself for my graphics card/cpu to decode the video (?)

Once again, thankful for any replies, and corrections.

[Jon]

Thanks all for following up — closing this out as 'Delivered' since it is now supported. 

As always, keep on sharing your feedback and ideas to improve Firefox 🙌