Thunderbird: Add security exception
My ISP requires me to change my POP3 encryption. When I do this I can't receive emails and get the "Add Security Exception" window pop up. I've contacted my ISP and they have checked and said the problem is not at their end. I've also contacted Avast and they checked by uninstalling Avast and the problem still persisted. So the issue seems to be within Thunderbird. How do I go about clearing this issue?