My client gets a sec_error_unknown_issuer
error message when visiting https://mediant.ipmail.nl with Firefox. I can't reproduce the error myself. I installed FF on a Vista and a XP machine and had no problems. FF on Ubuntu also works fine.
Does anyone get the same error and does anyone have some clues for me so I can tell my ISP to change some settings? The certificate is a so called wild-card SSL certificate that works for all subdomains (*.ipmail.nl). Was I wrong to pick the cheapest one?
If you click the Advanced button on a "Warning: Potential Security Risk Ahead" error page and you see the error code SEC_ERROR_UNKNOWN_ISSUER or MOZILLA_PKIX_ERROR_MITM_DETECTED, it means that the provided certificate was issued by a certificate authority that is not known by Firefox and, therefore, cannot be trusted ...
Secure Connection Failed Firefox Error Secure Connection Failed on Firefox error comes up when the browser does not recognize the Certificate Authority (CA) associated with the SSL certificate. However, this matter can be resolved by adding a new CA in the browser.
Just had the same problem with a Comodo Wildcard SSL cert. After reading the docs the solution is to ensure you include the certificate chain file they send you in your config i.e.
SSLCertificateChainFile /etc/ssl/crt/yourSERVERNAME.ca-bundle
Full details on Comodo site
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