User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0
Steps to reproduce:
Sometimes I need use SSH for tunnelling connection to mailserver (I have no direct access to the Internet). I tunnel for example imap.gmail.com port 993 to locahost port 10993 (so I have IMAP server configured to localhost:10993). In previous versions (68.12.1 and older) when I press "Get Messages" button in this case I see warning dialog box "Wrong Site, the certificate belongs to different site...." and I can confirm exception. And this is expected behavior.
In newer (I've tested 78.3.2 64-bit and some new beta versions) there is no any warning! Thunderbird displays "... connecting to localhost" on status bar forever and desn't receive mails.
Of course I can add exception in "Option -> Private & security -> Manage Certificates -> Servers, Add Exception " but it works for a few days. After some time (days, or if something changes in certificate) Thunderbird locks on this connection again without any warning. Could you bring back this previous behavior? The same problem is with SMTP outgoing connections.
How to reproduce:
Install 78 version (32 or 64 bit for Windows)
Make tunnell to imap server, for example: ssh -L 10993:imap.gmail.com:993 -vvvv username@somehost
Enter localhost, port 10993 as incoming IMAP server (see attached image)
Try to download emails. You will not see any warning, it "hangs". Even if you add manually certificate exception if something changes in certificate (or after a free days) this exception will be invalid. The warning message box is much better than silent hang...
Nothing. Silent. See attached image. There should be "Wrong site" dialog box, but in new version of Thunderbird nothing happens.
Could you bring back this previous behaviour ("Wrong site" message box)