User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:22.214.171.124) Gecko/20091102 Firefox/3.5.5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a1pre) Gecko/20100105 Shredder/3.2a1pre When connecting to an IMAP server that requests users identify themselves with a certificate, Thunderbird allows remembering the decision to use a given certificate, but is not able to remember the decision not to provide a certificate. The user can click "Cancel" and not send a certificate, but they will be prompted again next time. The "Remember this decision" checkbox should cause the decision not to send a certificate to be remembered. Reproducible: Always Steps to Reproduce: 1. Install a PKCS#12 certificate. 2. Connect to an IMAP server which requests clients to use a certificate for authentication. 3. At the User Identification Request window, make sure the "Remember this decision" checkbox is checked and then click "Cancel". Actual Results: When the server is connected to again later, the same dialog box prompts them again to choose a certificate to present. Expected Results: When the server is connected to again later, the client should remember the decision not to send a certificate, and should not display the dialog box. This issue is present in Thunderbird 3.0 as well as the nightly from 2010/01/05. I suspect the issue exists on all platforms but I lack resources to confirm this, so I'm submitting this as x86/Windows 7.
Did in worked in 126.96.36.199
This may be a special case of bug 437683 (allow "no certificate" option).