Thanks for the feedback, so it seems it's a problem with firefox indeed. Can you share the following file:
~/.mozilla/firefox/PROFILE/handlers.json where PROFILE is your firefox profile folder currently in use (you can get that information by browsing to about:profiles) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1933972 Title: Firefox opens pdf file with Gimp when evince is expected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1933972/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs