On Sat, 2022-09-24 at 20:36 +0200, Anders Andersson wrote: > Yes, I may have been "lucky" in the sense that I probably already had > the prerequisite libraries installed, and had perhaps already messed > with the required settings. There seem to be two orthogonal components > necessary to get smooth fullscreen video from youtube in firefox: > "Accelerated web page rendering" and "Hardware accelerated video > decoding".
18 months ago, this was working for me after forcing acceleration to be enabled in Firefox config. Then when Debian moved to next ESR it broke, and I spent ages looking at packages and option to try and fix it, without success. I tried Mozilla's Firefox deb package which worked fine, as did the Google Chrome and Vivaldi binaries from them. I now find myself using Debian's Firefox for general browsing, Vivaldi for watching video and Google Chrome exclusively for accessing my Google account services (chat and video meetings). -- Tixy
