I see that /etc/apparmor.d/abstractions/gnome in Ubuntu 18.04/bionic has this line...
owner @{HOME}/.config/gtk-3.0/* r, ...which covers the settings.ini file. So this should no longer be an issue. ** Changed in: firefox (Ubuntu) Status: New => Fix Released -- 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/1690858 Title: AppArmor profile blocks access to .config/gtk-3.0/settings.ini Status in firefox package in Ubuntu: Fix Released Bug description: On Kubuntu 16.04 running aa-logprof I get: Profile: /usr/lib/firefox/firefox{,*[^s][^h]} Path: /home/myusername/.config/gtk-3.0/settings.ini Mode: r To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1690858/+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