Some (nearly all) youtube videos will not play
The problem seems to have started after a browser update. Running up-to-date Windows 10. This issue does not occur when using Edge. Youtube videos are blank (spinning). Sometimes it results is a still frame, other times it spins forever. Many times, you can see a series of stills in the video as the time line is dragged from the beginning to the end of the video. A small number of videos will work, but I have not been able to predict which will work or why. A different Win 10 machine on the same network is fine. I have tried all of the solutions I could find searching on-line (clearing cache, cookies, reboot, restart, update browser software, etc, multiple times). Checked settings in windows, firefox and youtube looking for something. Any help would be appreciated. Have used Firefox for decades and I don't want to be forced to change browsers.
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Go to Settings
Scroll down to the Performance
Uncheck the box next to "Use recommended performance settings."
Uncheck the box next to "Use hardware acceleration when available."
Restart Firefox
Test again
Or maybe your graphics driver is the culprit, and you should update it.
Thanks for your quick response. At first, I thought it resolved, since more videos played. As I said originally, not all videos don't play and that is still the case with hardware acceleration disabled. Sometimes the advertisements play but not the video. Sometimes nothing plays. My video card is old and not that sophisticated, but I have no plans to upgrade the hardware at this time since all other browsers I have tried do not have this problem. I will look into a driver update if there is one.
Is there a way to revert to an older version of Firefox?
I have this problem since the latest update. The above solution doesn't work. Whatever the update caused, videos on YouTube always give me an error message now. So ... since Mozilla/Firefox is impossible to get hold of directly, no actual support here, I just decided to get another browser. Firefox was good for awhile - years actually - now it's worthless.