I have the same issue on Xubuntu 20.04. I find that just exiting
Firefox completely and relaunching it resolves the audio problem on
other applications and stays fixed, even after relaunching Firefox,
unless I go to a website that causes the issue to start again. So, it
seems to be very website specific for triggering it. One website that
always triggered it was, strangely enough, www.subway.com. I was in a
live meeting with MS Teams at the same time, but not 100% sure that MS
Teams factored into it except that the audio of the meeting got
scrambled up until I exited Firefox. If I went back to that website
again, it would happen again.
Unlike the other commenters, I don't even have a webcam on this PC at
the moment, so I don't think it's webcam related. But, I do have some
other hardware in common with the previous poster -- specifically Radeon
and Starship/Matisse Audio. At the time of the incident, the audio (of
both MS Teams and Firefox) was playing on the Starship/Matisse Audio
port. But based on all of the comments here, it doesn't seem to be
sound/video card specific, as I'm seeing both Nvidia vs Radeon and Intel
vs AMD throughout this thread.
$ lspci | grep Audio
2d:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Baffin HDMI/DP
Audio [Radeon RX 550 640SP / RX 560/560X]
2f:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD
Audio Controller
$ uname -a
Linux sylvester 5.4.0-73-generic #82-Ubuntu SMP Wed Apr 14 17:39:42 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
$ dpkg -l | grep firefox
ii firefox
88.0.1+build1-0ubuntu0.20.04.2 amd64 Safe and easy web
browser from Mozilla
ii firefox-locale-en
88.0.1+build1-0ubuntu0.20.04.2 amd64 English language
pack for Firefox
$ sudo lshw -C sound
*-multimedia
description: Audio device
product: Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0.1
bus info: pci@0000:2d:00.1
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:116 memory:fce60000-fce63fff
*-usb:2
description: Audio device
product: Plantronics .Audio 478 USB
vendor: Plantronics
physical id: 3
bus info: usb@5:2.1.3
version: 2.43
capabilities: usb-2.00 audio-control
configuration: driver=usbhid maxpower=120mA speed=12Mbit/s
*-multimedia
description: Audio device
product: Starship/Matisse HD Audio Controller
vendor: Advanced Micro Devices, Inc. [AMD]
physical id: 0.4
bus info: pci@0000:2f:00.4
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:118 memory:fcd00000-fcd07fff
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1906741
Title:
Firefox sometimes causes garbled audio
Status in firefox package in Ubuntu:
Confirmed
Status in pulseaudio package in Ubuntu:
Confirmed
Bug description:
Opening certain applications/websites at the same time as Firefox
causes the audio to become garbled.
The audio sounds distorted with an echo.
Certain actions are guaranteed to cause this, but it can also
happening when only running instances of Firefox.
I've been able to consistently cause this by launching Zoom from a link
within Firefox.
This does not occur when using Chrome.
The only way to fix the issue is to shut down all audio-related
programs.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: firefox 83.0+build2-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73
Uname: Linux 5.4.0-56-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: rdevans 55475 F.... pulseaudio
/dev/snd/controlC0: rdevans 55475 F.... pulseaudio
/dev/snd/controlC3: rdevans 55475 F.... pulseaudio
/dev/snd/controlC1: rdevans 55475 F.... pulseaudio
BuildID: 20201112153044
CasperMD5CheckResult: skip
Channel: Unavailable
CurrentDesktop: ubuntu:GNOME
Date: Thu Dec 3 16:55:36 2020
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2017-10-20 (1140 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IpRoute:
default via 10.0.0.1 dev enp7s0 proto dhcp metric 100
10.0.0.0/24 dev enp7s0 proto kernel scope link src 10.0.0.7 metric 100
169.254.0.0/16 dev enp7s0 scope link metric 1000
Locales: extensions.sqlite corrupt or missing
PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:354
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=83.0/20201112153044 (In use)
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to focal on 2020-11-12 (21 days ago)
dmi.bios.date: 02/18/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.40
dmi.board.name: H67M
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP1.40:bd02/18/2011:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH67M:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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