After the latest software update YouTube doesn't play videos [closed]

Question 1

This question was closed because the problem as described can't be reproduced. It is not currently accepting answers.

This describes a problem that can't be reproduced, that seemingly went away on its own or was only relevant to a very specific period of time. It's off-topic as it's unlikely to help future readers.

Closed 21 hours ago.

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I updated Ubuntu 24.04 when the popup window for the software updater showed up and asked if I wanted to install the updates. I chose to 'install' and then did a restart and when I went to YouTube, videos don't play. I get the list of videos, but when I click on a video, it opens the new page and everything comes up, but no video window and no video. On this other computer YouTube is playing videos. Both have Firefox version 152.0.4 and are running Ubuntu 24.04. I also tried getting the URL from the "Share" icon. I copied it and pasted it into the address line but that didn't work either.

Question 2

Try ruling out your Firefox profile first.

Open a terminal and run:

firefox -P

Create a new temporary profile, start Firefox with it, and test YouTube before changing settings or adding extensions.

If YouTube works there, the problem is probably your Firefox profile, cache, settings, or an extension, not Ubuntu itself.

You can also try clearing YouTube from Firefox's site data, Search youtube in your firefox: privacy & security/cookies and site data/manage data/search