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Firefox no longer trusts my internal certificate authority used for internal sites on our domain.

The error: SEC_ERROR_UNKNOWN_ISSUER. The certificates use sha256 for their signature algorithm. Chrome and Edge both see the certificates as valid. This is a recent chang… (read more)

The error: SEC_ERROR_UNKNOWN_ISSUER.

The certificates use sha256 for their signature algorithm.

Chrome and Edge both see the certificates as valid.

This is a recent change, I believe starting with Firefox 55.

Thanks for any help with this!

Asked by elliotstarks 3 years ago

Answered by cor-el 3 years ago