I guess it's not a firefox related bug, but a bug in the certificate setup. I contacted the site owner.
-- "Confirm Security Exception" not working https://bugs.launchpad.net/bugs/214725 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs