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Firefox will periodically not play videos giving me this error:


Your browser does not currently recognize any of the video formats > available.Click here to visit our frequently asked questions about > HTML5 video.


Chromium plays the video fine.

I get the error using a fresh install Ubuntu 20.04 with third party software option checked on install.

Issue started in Ubuntu 19.10 when I switched over from Comcast to Sonic fiber had error with other versions of Firefox.

My network has Snort configured on a Pfsense router but the error still occurs when I disable Snort and clear all blocked URLs.

What can I check?

8

I've run into the same problem and it looks like installing ubuntu-restricted-extras did the trick:

sudo apt install ubuntu-restricted-extras

Hope it helps!

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    This solved my problem with Firefox + Ubuntu 20.04 Aug 7 '20 at 22:17
0

I also went through the same issue. After some digging I read on Netflix website that the Firefox should be "verified" one. So I manually installed the Firefox issued by "Mozilla". And everything is working fine now.

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    Can you please link the website page where you read the same? It will help the seekers to verify the information and check for more if they have further queries. Jul 29 '20 at 14:10

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