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Unable to log in to Firefox Sync due to "Insecure Connection"

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I'm unable to log in to my FF Sync Account - when I click the the "Sign In" button I get error "SEC_ERROR_UNKNOWN_ISSUER" saying that:

"The owner of accounts.firefox.com 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."

Is this really a Firefox issue? Or something I need to configure on my computer?

I'm unable to log in to my FF Sync Account - when I click the the "Sign In" button I get error "SEC_ERROR_UNKNOWN_ISSUER" saying that: "The owner of accounts.firefox.com 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." Is this really a Firefox issue? Or something I need to configure on my computer?

Semua Balasan (1)

Hi, please see this and please list back if you are running one of them : https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER There are still issues with things so dates should be ignored. If using one update it., restart Firefox, go to the community forum for the product and check for solutions.