Confirming this with Xubuntu 18.04 and Ubuntu 19.10. Is this working as intended though?
** Changed in: firefox (Ubuntu) Status: New => Confirmed -- 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/1838200 Title: Firefox notifications windows will stay on the display when I open other apps Status in firefox package in Ubuntu: Confirmed Bug description: You can see video that appears this problem below (in comments). 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: Sun Jul 28 19:09:48 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 2019-07-27 (0 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190726) ProcEnviron: LANGUAGE=ru_UA:ru PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_UA.UTF-8 SHELL=/bin/bash Profiles: Profile1 (Default) - LastVersion=None/None (Out of date) Profile0 - LastVersion=68.0.1/20190719083815 (In use) SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) To manage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/1838200/+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