I can reliably observe the problem, on disco and eoan. Tested both the Ubuntu packages from the archive, and the upstream build.
Would you mind filing an upstream bug report at https://bugzilla.mozilla.org/enter_bug.cgi#h=dupes%7CFirefox and sharing the link to it here? Thanks! ** Summary changed: - Firefox on Wayland opens with black screen + Firefox window initially appears black when launching on Wayland ** Changed in: firefox (Ubuntu) Importance: Undecided => Medium -- 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/1838963 Title: Firefox window initially appears black when launching on Wayland Status in firefox package in Ubuntu: Confirmed Bug description: Details here: https://photos.app.goo.gl/2CjpJGB1wEWU8qJw6 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 13:24:46 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Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190802) Profiles: Profile1 (Default) - LastVersion=None/None (Out of date) Profile0 - LastVersion=68.0.1/20190719083815 SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications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/1838963/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

