Like Philipp Dreimann and CaptainMark, I have the same problem after today upgrade.
I manualy added, but didnt helped. sudo cp /tmp/DigiCertHighAssuranceCA-3.crt /usr/share/ca-certificates/mozilla/DigiCert_High_Assurance_CA-3.crt sudo dpkg-reconfigure ca-certificates -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742889 Title: DigiCert certificates should be included in Ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ca-certificates/+bug/742889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs