1678778 - Firefox fucks pulseaudio

Status: RESOLVED DUPLICATE of bug 1345661

(Firefox :: Untriaged, defect)

Description

[george.abraham.ro]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0

Steps to reproduce:

use firefox 83 wayland on latest kde plasma wayland - archlinux
Firefox fucks pulseaudio - the internal soundcard is muted, for both the internal speakers and headphones, when I connect them.
Note that I started with a fresh profile, which I synced (only passwords and browser history are synced).

if I use an external xonar x3 sound card via usb, firefox does not fuck/mute this one.

Actual results:

Firefox mutes the audio output, on youtube for example, while playing videos.

Expected results:

firefox should not fuck the soundcard volume, and leave it unmodified, without muting the sound source.