Looks like this is a duplicate of https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1639863.
If I'm not imagining that Firefox and Thunderbird showed up in Discover recently, then that means that Ubuntu users have been unable to use GNOME Software or KDE Discover to install the FOSS world's most popular web browser and email client for over a year. ** Changed in: appstream-generator (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1748278 Title: Firefox and Krita (and possibly others) recently lost their AppStream metadata To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/appstream-generator/+bug/1748278/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs