I've got an LDAP server configured for in Thunderbird's address book (ldap.example.com). I'd like to use the SSL version, so I checked the 'Use SSL' box. It starts to work, but I get a certificate warning in response. Okay, sure, I know that server uses a funny certificate, so I'll add it.
I found the 'Add Security Exception' box readily enough, and it asks me for a server location. But I don't know what to put in there. The dialog box starts with https:// in it, but https://ldap.example.com doesn't work, and neither does anything like imaps:// or ldap:// or ldaps:// (is that a real protocol name? well, I tried it). LDAP really is the only service this server provides.
How can I get Thunderbird to read the certificate?
Best Answer
In subsequent exploration I discovered that you can simply provide the URL https://ldap.example.com:636 (636 being the SSL+LDAP port) and Thunderbird will do the SSL negotation necessary to get the certificate, drop the connection, and never realize that it's not actually talking HTTP.
I'm going to file something with the Thunderbird bug tracker suggesting they take ldaps:// as a protocol specifier, instead of using that silly hack.