nevermind, it was due to messed up ~/.config/mimeapps.list from an earlier installation - can be closed
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1778549 Title: Thunderbird selectable as default web browser Status in ubuntu-mate: New Status in thunderbird package in Ubuntu: New Bug description: The "Web Browser" section of "Preferred Applications" in UM 18.04 includes Thunderbird as an option. While it can technically display HTML, it is not supposed to be a general-purpose webbrowser. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1778549/+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

