“invalid security certificate” warning makes entire Thunderbird unusuable and recoverable
Steps to reproduce:
1. Install add on.
2. Set up calendar by pointing the add-on to an Exchange URL that uses a certificate chain with an untrusted root certificate.
Expected: I’d be able to accept the certificate (manual override). Or at least be able to uninstall the add-on and not use it at all.
Actual: A certificate warning appears that I can’t cancel out of, rendering Thunderbird completely unusable.
The exact wording of the warning is as follows:
Secure Connection Failed
The certificate is not trusted because no issuer chain was provided.
(Error code: sec_error_
The only choices are “View Certificate” and “Cancel”. Pressing “Cancel” brings up the same popup again immediately.
Ending Thunderbird with SIGTERM, and re-opening, results in the popup immediately appearing again, which prevents me from uninstalling the add-on.
Note: Thunderbird is also using 100% CPU at this time.
You’ll forgive me if I haven’t provided more detail, as I can no longer access anything in Thunderbird.
Can you help with this problem?
Provide an answer of your own, or ask Michael Kropat for more information if necessary.