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SEC_ERROR_UNKNOWN_ISSUER error and I have McAfee antivirus

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  • Last reply by cor-el

Sambaralu1
Sambaralu1
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I am getting SEC_ERROR_UNKNOWN_ISSUER error for all Google related websites and I have McAfee antivirus on my system. Can you please help me in this.

I am getting SEC_ERROR_UNKNOWN_ISSUER error for all Google related websites and I have McAfee antivirus on my system. Can you please help me in this.

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cor-el
cor-el
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  • Top 10 Contributor
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You will have to check the issuer of the certificate.

If you can't inspect the certificate via Advanced (I Understand the Risks) then try this:

Open the "Add Security Exception" window by pasting this chrome URL in the Firefox location/address bar and check the certificate:

  • chrome://pippki/content/exceptionDialog.xul

In the location field of this window type or paste the URL of the website with the https:// protocol prefix (https://xxx.xxx).

  • retrieve the certificate via the "Get certificate" button
  • click the "View..." button to inspect the certificate in the Certificate Viewer

You can inspect details like the issuer and the certificate chain in the Details tab of the Certificate Viewer. Check who is the issuer of the certificate. If necessary then please attach a screenshot that shows the Certificate Viewer with the issuer.