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 Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1838965 Title: Screen tearing in Firefox on Wayland Status in firefox package in Ubuntu: Incomplete Bug description: Details here: https://photos.app.goo.gl/9kA7R6KqNaSsn9CB8 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: firefox 68.0.1+build1-0ubuntu2 ProcVersionSignature: Ubuntu 5.2.0-8.9-generic 5.2.0 Uname: Linux 5.2.0-8-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 BuildID: 20190719083815 CurrentDesktop: ubuntu:GNOME Date: Mon Aug 5 13:36:32 2019 DefaultProfileExtensions: extensions.sqlite corrupt or missing DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) DefaultProfileLocales: extensions.sqlite corrupt or missing DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:1141 DefaultProfileThemes: extensions.sqlite corrupt or missing InstallationDate: Installed on 2019-08-04 (0 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190802) Profiles: Profile1 (Default) - LastVersion=None/None (Out of date) Profile0 - LastVersion=68.0.1/20190719083815 (In use) SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1838965/+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
