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0 pointszcdziura6y ago0 comments

What have you noticed about mp4 video playback that is broken? I've used Firefox as my daily driver for many, many years (even before the Quantum updates) and have never noticed any playback errors.

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hackinthebochs6y ago

It simply doesn't work for some non-trivial amount of videos, e.g. some instagram stories or gfycat mp4s. If you load the link directly in the browser it will say the file is corrupt. Loading the same link in chrome plays fine.

padenot6y ago

Would you mind filing a bug at [0] with the content of about:support and maybe a link or two where it doesn't work? Happy to have an initial look into this (I work on the media team at Mozilla).

[0]: https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&comp..., you can log in with a github account or create one

yoasif_6y ago

I suspect this user is on Linux and doesn't have h.264 codecs installed.

They should be able to do this fairly easily -- two distros here:

https://help.ubuntu.com/community/RestrictedFormats

https://docs.fedoraproject.org/en-US/quick-docs/assembly_ins...

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