Thank you for your bug report. Which desktop environment and session do you use? it sounds like it could be the same issue than https://bugzilla.mozilla.org/show_bug.cgi?id=1732580 which has a fix recently landing upstream and should make it to beta next
** Bug watch added: Mozilla Bugzilla #1732580 https://bugzilla.mozilla.org/show_bug.cgi?id=1732580 ** Changed in: firefox (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1947115 Title: VAAPI / HW-acceleration not working Snap-packaged Firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1947115/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs