As per the upstream bug, this is getting fixed in firefox 135 ** Changed in: firefox (Ubuntu) Status: Invalid => Confirmed
** Bug watch added: Mozilla Bugzilla #1933823 https://bugzilla.mozilla.org/show_bug.cgi?id=1933823 ** Also affects: firefox via https://bugzilla.mozilla.org/show_bug.cgi?id=1933823 Importance: Unknown Status: Unknown -- 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/2078774 Title: Fullscreen Firefox is not being rendered as direct scanout in GNOME 46/47 Status in Mozilla Firefox: Unknown Status in Mutter: Fix Released Status in firefox package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Triaged Bug description: Fullscreen Firefox is not being rendered as direct scanout in GNOME 47. Press Alt+F2, type "lg", click Flags and enable PAINT_DAMAGE_REGION. This will show you in red when part of the screen is being composited. When an app is getting fullscreen direct scanout, all redness should go away. It does for Chrome, but not for Firefox. To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/2078774/+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