This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox reports that 'The owner of www.google.com has configured their website improperly....'

  • 1 reply
  • 2 have this problem
  • 6 views
  • Last reply by cor-el

billseldon
billseldon
more options

This message occurred on a third party website some time ago. Now I cannot even access the Google search engine. What do I need to do to clear it?

Full Message: "Your connection is not secure

The owner of www.google.co.uk has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.

This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate.

Learn more…

Report errors like this to help Mozilla identify and block malicious sites"

(Note I am reporting this through MS Edge. I cannot access anything on Firefox))

This message occurred on a third party website some time ago. Now I cannot even access the Google search engine. What do I need to do to clear it? Full Message: "Your connection is not secure The owner of www.google.co.uk has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website. This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result, it is not possible to add an exception for this certificate. Learn more… Report errors like this to help Mozilla identify and block malicious sites" (Note I am reporting this through MS Edge. I cannot access anything on Firefox))

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Are you using Kaspersky security software?

See:

You can click the "Advanced" button to expand this section and show extra details. If the certificate is not trusted because the issuer certificate is unknown (SEC_ERROR_UNKNOWN_ISSUER) then click the blue error message to expand this section and show the certificate chain. You can click "Copy text to clipboard" and paste the base64 encoded certificate chain text in a reply. That will allow us to details like the issuer of the certificate.

  • always be cautious when you get an 'Untrusted' error message
  • never create a permanent exception without investigating the cause and only use this to inspect the certificate