Pipewire got the sound back for YouTube videos on Ubuntu 22.04

Mon Nov 14 2022 00:00:00 GMT+0000 (Coordinated Universal Time)

Sound disappeared in Firefox sometimes and did not come back, while playing YouTube videos. Only recourse seemed to be to restart the computer! I got it back by installing a new sound system called pipewire, see instructions here: https://ubuntuhandbook.org/index.php/2022/04/pipewire-replace-pulseaudio-ubuntu-2204/

Seems to be a problem for a certain Intel chipset?

Discussion here: https://askubuntu.com/questions/1406874/youtube-freezing-videos-in-fresh-22-04-installation