Immediately after reporting this I tried again to play a video, and this time it worked.
After much frustration the problem just disappeared. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1892779 Title: Browser will not play videos To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1892779/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs