Until this is fixed upstream (apparently in firefox 88, thanks Paweł for the link), this should work around the problem: https://bazaar.launchpad.net/~mozillateam/firefox/firefox.hirsute/revision/1478.
** Changed in: firefox (Ubuntu) Assignee: (unassigned) => Olivier Tilloy (osomon) ** Changed in: firefox (Ubuntu) Status: New => Confirmed ** Changed in: firefox (Ubuntu) Importance: Undecided => High ** Changed in: firefox (Ubuntu) Status: Confirmed => Fix Committed ** Summary changed: - Broken WebGL in Firefox 87.0 on Kubuntu 21.04 Beta (Xorg) + Broken WebGL in Firefox 87.0 in xorg session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1923116 Title: Broken WebGL in Firefox 87.0 in xorg session To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1923116/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs