I also have this issue on Hirsute and 89.0+build2-0ubuntu0.21.04.1 Strangely, in the Gnome overview, all of the firefox windows have correctly rendered previews, however when you take a screenshot of an open firefox window, it comes out either blank, or with a transparent checkerboard pattern. The actual image seen on the monitor is a white screen.
My workaround for the moment is to downgrade to an older version sudo apt install firefox=87.0+build3-0ubuntu4 Then launch Firefox once using the command: firefox -allow-downgrade And for now I have held the package in apt to prevent upgrades to the broken version: sudo apt-mark hold firefox ** Attachment added: "screenshot of 2 firefox windows" https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1931388/+attachment/5505049/+files/Screenshot%20from%202021-06-16%2009-32-05.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1931388 Title: Firefox disaplayerror after Update on last version 89 Status in Ubuntu MATE: New Status in firefox package in Ubuntu: Incomplete Bug description: After the last Update from Firefox Browser to Version 89 Firefox is unsuable. The Program starts but the window is somehow transparent and white. I removed and reinstalled Firefox but the problem is the same. My computer is an Amd Mashine running Ubuntu Mate 20.10 Mate 1.24.1 I took a Screenshot. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1931388/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
