It is possible to resize the dialog here but I think it depends on your WM.
No fix has arrived here on Xenial. I'll check Bionic asap and report back. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1251059 Title: Preferences dialog window too small To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1251059/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs