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Unmatching security certificate for sync.contextualadv.com - Antivirus warning

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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

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