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Profile1 (Default) - LastVersion=None/None (Out of date)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)
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!