
Unmatching security certificate for sync.contextualadv.com - Antivirus warning
Hello.
Everytime I open a new Firefox window, I get this warning from my antivirus:
Suspicious connection blocked 8 minutes ago
Feature: Online Threat Prevention
firefox.exe attempted to establish a connection relying on an unmatching security certificate to sync.contextualadv.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.
Usually, when I see this happen, the company fixes the issue within a day or two, but this has been occurring since at least 4/9/2025. This warning occurs regardless of whether my browser is logged into it's Mozilla account or not.
Regards, Jason
Hello.
Everytime I open a new Firefox window, I get this warning from my antivirus:
--------------
Suspicious connection blocked
8 minutes ago
Feature:
Online Threat Prevention
firefox.exe attempted to establish a connection relying on an unmatching security certificate to sync.contextualadv.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.
----------------
Usually, when I see this happen, the company fixes the issue within a day or two, but this has been occurring since at least 4/9/2025. This warning occurs regardless of whether my browser is logged into it's Mozilla account or not.
Regards,
Jason