608920 - Untrusted certificate pop-up shows up when accessing email, cannot be added nor closed

Status: RESOLVED DUPLICATE of bug 528922

(Thunderbird :: Message Reader UI, defect)

Description

[rhand_mbugs]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.12) Gecko/20101027 Thunderbird/3.1.6

I received an email from my bank with the latest html file which I use to access secure online bank statment. Thunderbird indicated "The Cetificate is not trusted because the issuer is unknown. I cannot add the certicate from that moment on and cannot use Thunderbird until I close it and restart it. And as soon as I go to the email in question the same popup shows up again. I need to be able to access these emails.

Reproducible: Always

Steps to Reproduce:
1. Open Thunderbird
2. Go to Bank email with e-stament
3. get pop-up showing certificate is not trusted
4. Foreced to close and restart Thunderbird to use it at all

Comment 1

[rhand_mbugs]

When I repeatedly click cancel in the pop-up with the remark that the certificate isn't trustworthy I get:
An error occurred during a connection to www.xxx.com:443.
Cannot communicate securely with peer: no common encryption algorithm(s).
(Error code: ssl_error_no_cypher_overlap)
And after clicking cancel again I am returned to the same pop-up with certificate issue.

PS I am using IMAP