The tearing isn't obvious to my untrained eye, nor can I observe it locally when testing in VMs. I tested both X11 and Wayland, by scrolling up and down a long wikipedia page.
Can you provide details about your graphics card and driver? Can you test an upstream build (download and unpack https://www.mozilla.org/firefox/download/thanks/) and confirm whether it's similarly affected? If so, can you file an upstream bug at https://bugzilla.mozilla.org/enter_bug.cgi#h=dupes%7CFirefox and share the link to it here? Thanks! ** Changed in: firefox (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1838965 Title: Screen tearing in Firefox on Wayland To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1838965/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs