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I am new to Linux and I'm trying Ubuntu 20.04.1 on a USB key to see what it's like. I wanted to watch a movie on Prime Video using Firefox, but I couldn't : it asked me to allow DRM, which I did. But still, I wasn't able to watch my movie (says an error occured) and I tried on Netflix (error F7355): issue is the same.

I have been looking on the internet for a solution but I couldn't find any. I have :

  • Updated Firefox using sudo apt install --only-upgrade firefox
  • Changed media.libavcodec.allow-obsolete;false to true in Firefox about:config
  • Checked that I have OpenH264 and Widevine plugins activated
  • Tried commands I found online... Such as sudo apt-get install libavcodec-extra, sudo apt-get update && apt-cache search libavcodec-extra, sudo apt-cache search libav | grep extra- or sudo apt-cache search libav | grep extra-...

Most of the posts I found were pretty old. It seems like i'm missing this "libavcodec" but I don't really know what it is nor how I should get it.

I can play YouTube videos, however Twitch videos do not work (Error 4000)

Could anyone help me ? I was happy with my Linux experience so far, but I'm a bit disapointed that it's so hard to do something as simple as watching a stream !

Thanks a lot and sorry for my english, I'm not a native speaker.

Sponx
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    Have you opened Firefox, clicked on Preferences, scrolled down and enabled DRM content? – KGIII Dec 10 '20 at 00:35
  • Yes sorry, forgot to mention it but it's been done. BTW here's one one the thread I followed : https://askubuntu.com/questions/1237114/watching-netflix-in-firefox-on-ubuntu-20-04-generates-error-f7355?rq=1 – Sponx Dec 10 '20 at 02:19
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    Does this answer your question? [Watching Netflix in Firefox on Ubuntu 20.04 generates error F7355](https://askubuntu.com/questions/1237114/watching-netflix-in-firefox-on-ubuntu-20-04-generates-error-f7355). Also: [12.04 - Netflix error code F7355-1204 and F7363-1260 - Ask Ubuntu](https://askubuntu.com/a/906822/349837) – Pablo Bianchi Dec 13 '20 at 05:25

1 Answers1

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I installed Ubuntu (was using a USB version) and the command sudo apt install libavcodec-extra worked. After enabling DRM in Firefox and rebooting the app, I'm now able to watch streams.

thanks for your help

Sponx
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