Try:
sudo apt install gstreamer1.0-libav
Then close and re-open firefox. Does this fix the problem?
** Changed in: firefox (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1900992
Title:
twitch erreur 4000
Status in firefox package in Ubuntu:
Incomplete
Bug description:
-dans mon firefox 81.0.2 (en .deb) les stream sur twitch soulève l'erreure
4000. sur ce même ordi le firefox(82.0) en snap n'a pas ce problème. Es que
c'est un problème de codec?
-In my firefox 81.0.2 (in .deb) twitch streams raise the error 4000.
On the same computer the firefox (82.0) in snap doesn't have this
problem. Is it a codec problem? thanks ;)
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: firefox 81.0.2+build1-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: yael 1188 F.... pulseaudio
BuildID: 20201012085804
CasperMD5CheckResult: skip
Channel: Unavailable
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 22 11:49:36 2020
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:733
DefaultProfileThemes: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
InstallationDate: Installed on 2020-07-30 (83 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
IpRoute:
default via 10.0.2.2 dev enp0s3 proto dhcp metric 100
10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100
169.254.0.0/16 dev enp0s3 scope link metric 1000
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
Profile0Extensions: extensions.sqlite corrupt or missing
Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile0Locales: extensions.sqlite corrupt or missing
Profile0PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:733
Profile0PrefSources: prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profiles:
Profile1 (Default) - LastVersion=None/None (Out of date)
Profile0 - LastVersion=81.0.2/20201012085804
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.board.name: VirtualBox
dmi.board.vendor: Oracle Corporation
dmi.board.version: 1.2
dmi.chassis.type: 1
dmi.chassis.vendor: Oracle Corporation
dmi.modalias:
dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
dmi.product.family: Virtual Machine
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
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