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The Firefox have problem with ssl certificate. Error "sec_error_unknown_issuer". Delete database cert8.db don't help. Because open Firefox problem periodically

cyberpiratenew
cyberpiratenew
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The Firefox have problem with ssl certificate. Error "sec_error_unknown_issuer". Delete database cert8.db don't help. Because open Firefox problem periodically appears. How correct problem? SSL certificate internal certification authority.

The Firefox have problem with ssl certificate. Error "sec_error_unknown_issuer". Delete database cert8.db don't help. Because open Firefox problem periodically appears. How correct problem? SSL certificate internal certification authority.

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cor-el
cor-el
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Who is the issuer of the certificate?

Firefox needs a root certificate to be able to build a complete certificate chain then ends with a trusted root certificate.

cyberpiratenew
cyberpiratenew Question owner
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I have internal certification authority company. Chain (Root,Intermediate,MicrosoftCA,Certificate(test.ru)). I have error with the same serial numbers in ssl certificate Intermediate and MicrosoftCA. Site with https:// In other browsers (chrome, IExplorer) opens normally.