That's really quite add because ubuntu-release-upgrader just creates .crash files in /var/crash which are then handled by apport. Do you happen to have a screenshot of the error dialog or perhaps remember the contents of it?
** Changed in: apport (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1068557 Title: Non-default browser launched when clicking "Report Bug" button in error popup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1068557/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs