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How to Fix No Sound in Linux - Appuals.com
https://appuals.com/how-to-fix-no-sound-in-linux/#:~:text=%20How%20to%20Fix%20No%20Sound%20in%20Linux,none%20of%20the%20basic%20methods%20have...%20More%20
Ubuntu Linux: No sound at all in Firefox 65.0.1 | Firefox ...
https://support.mozilla.org/en-US/questions/1252773
Ubuntu Linux: No sound at all in Firefox 65.0.1. 2 replies 1 has this problem 7947 views; Last reply by OldReliable 2 years ago. OldReliable. 3/11/19, 6:00 AM. more options. Quote; All other apps (like Chrome, Spotify, and audio configuration sound test) sound fine. I've tried -safe-mode, re-installing, and removing duplicate Flash plugins. ...
sound - Firefox doesn't play audio - Ask Ubuntu
https://askubuntu.com/questions/666041/firefox-doesnt-play-audio
Because (as far as I know) firefox does not have any way to select an audio output device, if you change the output device for an application it will retain that information.... my guess is that at some point you, or someone else (or some application) has selected HDMI audio for firefox, and that has been stored.... you just need to change it back to the default device.
803042 - No sound in Firefox on Linux (HTML5 video and audio)
https://bugzilla.mozilla.org/show_bug.cgi?id=803042
no sound in firefox [solved] / Multimedia and ... - Arch Linux
https://bbs.archlinux.org/viewtopic.php?id=192627
Re: no sound in firefox [solved] Yeah, this is your problem, why are you doing this? you bypass pulse for ALSA devices and as soon as something alsa comes up it tries to use the asym and dmix stuff which won't work if pulseaudio is already using the device and vice versa.
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