I get this pop-up box from Bitdefender Antivirus:

Suspicious connection blocked
3 minutes ago

Feature:
Online Threat Prevention

firefox.exe attempted to establish a connection relying on an unmatching security certificate to newagtalk.com. We blocked the connection to keep your data safe since the used certificate was issued for a different web address than the targeted one.
Add to exceptions

Been going on for several months. Odd that it allows me to continue onto the forum.