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certificate problem

  • 6 replies
  • 3 have this problem
  • 2 views
  • Last reply by FredMcD

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i cannot browse ANY webpage. i keep receiving certificate warnings. any page. even google.com

i cannot browse ANY webpage. i keep receiving certificate warnings. any page. even google.com

All Replies (6)

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What is the full error message?

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screen shot of the error?

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FredMcD said

What is the full error message?
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Do you get the SEC_ERROR_UNKNOWN_ISSUER error?


You can check if there is more detail available about the issuer of the certificate.

  • click the "Advanced" button show more detail
  • click the blue SEC_ERROR_UNKNOWN_ISSUER message to show the certificate chain
  • click "Copy text to clipboard" and paste the base64 certificate chain text in a reply

If clicking the SEC_ERROR_UNKNOWN_ISSUER text doesn't provide the certificate chain then try these steps to inspect the certificate.

  • open the Server tab in the Certificate Manager
    • Options/Preferences -> Privacy & Security
      Certificates: View Certificates -> Servers: "Add Exception"
  • paste the URL of the website (https://xxx.xxx) in it's Location field.

Let Firefox retrieve the certificate -> "Get Certificate"

  • click the "View" button and inspect the certificate

You can see detail like the issuer of the certificate and intermediate certificates in the Details tab.

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cor-el said

Do you get the SEC_ERROR_UNKNOWN_ISSUER error?

You can check if there is more detail available about the issuer of the certificate.

  • click the "Advanced" button show more detail
  • click the blue SEC_ERROR_UNKNOWN_ISSUER message to show the certificate chain
  • click "Copy text to clipboard" and paste the base64 certificate chain text in a reply

If clicking the SEC_ERROR_UNKNOWN_ISSUER text doesn't provide the certificate chain then try these steps to inspect the certificate.

  • open the Server tab in the Certificate Manager
    • Options/Preferences -> Privacy & Security
      Certificates: View Certificates -> Servers: "Add Exception"
  • paste the URL of the website (https://xxx.xxx) in it's Location field.

Let Firefox retrieve the certificate -> "Get Certificate"

  • click the "View" button and inspect the certificate

You can see detail like the issuer of the certificate and intermediate certificates in the Details tab.

why do I even have to such things? no other browsers have this kind of issues. I can't even open google.com just make an update and change this thing

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Such problems as yours are mostly caused by the computers protection programs. By answering our questions, we can help you set things up to work properly.