Happening here; the issue is not that I can't work around it with a security exception, but that it should not require a security exception. The remote server is presenting a valid certificate signed by a CA certificate I have installed, there is no security exception to be made. I'm certainly not about to start adding invalid security exceptions!
Have downgraded to 15 to work-around for now. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1066585 Title: [Regression] Cacert CA certified certificate no longer recognized Status in Mozilla Thunderbird Mail and News: Confirmed Status in “thunderbird” package in Ubuntu: Confirmed Bug description: There is a fairly serious regression from thunderbird 15.0.1+build1-0ubuntu0.10.04.1 to 1:16.0.1+build1-0ubuntu0.10.04.1. The later version apparently no longer recognizes the Cacert CA whereas the former does. I use a self-signed cert for my mail-server with a key that is trusted by Cacert.org. This stopped working today with said update. Upon connection to the mail server I'm being shown an "Add security exception"-dialog saying that the certificicate isn't trusted. I have run TB in safe-mode and it was the same. I've also tried adding the Cacert root CA explicitly as trusted but TB told me that the certificate is already in the pool (not really a surprise as the old version of TB relied on it quite happily). I've now downgraded back to the previous version and used pinning to prevent an upgrade. Oh, and by the way, feel free to ignore this ticket as I believe in "Datensparsamkeit" instead of routinely uploading oodles of private information via apport. This ticket contains all the information you need, if not, feel free to ask for clarification. I hope Ubuntu is still about quality and not about being required to use certain tools to report an issue (while being ignored in the bug tracker nonetheless ;)) To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/1066585/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp