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Wystawca certyfikatu uczestnika komunikacji nie został rozpoznany.

HTTP Strict Transport Security: false HTTP Public Key Pinning: true

Łańcuch certyfikatu:

MIIDcjCCAlqgAwIBAgIQTsMaultG4blE4S9DCRqGKjANBgkqhkiG9w0BAQsFADAj MSEwHwYDVQQDDBhEaWdpQ2VydCBHbG9iYWwgUm9vdCBHMUEwHhcNMjEwNjEyMTkz OTMwWhcNMzIwNjEyMjEzOTMwWjAZMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTCC ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKUFK+OGT8CrSE0LSJd5mAAk bc2pYsTczKGRYicBDiPq893kSGTa5mWgEBCksYo2cI+07uWGkcpIzYQY0lC0jw1o fBT63k/jUdMdA+TQChrvC0fGMDIFoBNyW4K9KlXkgHIGyhvlN56Hupl89M6D070i O6T7rF0rvtW4p7JGUi4pEVHDl3mzCGSwpILMr+Tyci9YwJJD/9Efs8IX1KHj/R0B HfiSUYczKGsaz3jm1dK+54ksQ3wgKqvFEHuiexcHBc/7epzzTIiRBlMAUfA9GBGV tkEsWKpNOpTX8TAbVFIjOiKwxIiRDm0hM0f+YQ/4UNClBExEYS1heJMb5lztubEC AwEAAaOBqzCBqDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMA4G A1UdDwEB/wQEAwIFoDAzBgNVHREELDAqgg53d3cuZ29vZ2xlLmNvbYIMKi5nb29n bGUuY29tggpnb29nbGUuY29tMB8GA1UdIwQYMBaAFFN8WCLBPFpZx++UJ1QgXsqG t2ZRMB0GA1UdDgQWBBTCXZgXV8RIewM/H6rK7AroZVSrxDANBgkqhkiG9w0BAQsF AAOCAQEANzRQcl6Gu1vSBNCpYv0LpKfnztIO2pMZeg11SzNZCHCUpbptR/u63Sco RfBeh0tOrziZclfzx9TTkTkVqjhRDS6NTyALm0H2gu7FpKKTfaJsvMiJVTy9Q2/t c9UbV3aumVjhbYZlFcKzJ4GACl3G1/52JfRYowP4va4sbdxYz9aoTWG7Xcr09r+g 8ImSz8p5+J+ZbQ+J5k/NDcrKi9oqFoShUb7eEsdteTeeTsoGqErxGT12SZtPp7+J HPthDLd8M9f6s5WeEvuGJAeZqDAy8sR3up/Ye2qt3pTq0hyGomdzj0JMp8q4ZJ3t 1WKCJFXkGzQ3x3J/Fe6C2P26jCHVog==

Firefox isn't saying there is a problem with a site. Firefox is saying that it cannot verify that the server responding to the request actually is the real site -- rather than an impostor or intermediary.

Have you restarted your computer since you installed Firefox? Many popular security products intercept your browsing and may only set up Firefox to work with their fake site certificates at startup.

If you already tried that:

Could you click the "Zaawansowane" button and see whether there is a more technical explanation there. Often there will be a SEC_ERROR_SOMETHING code. This article has information for many of those codes:

How to troubleshoot security error codes on secure websites

Sometimes users need to instruct Firefox to ignore system-level proxy server settings. Here's how to test that (sorry, I don't have the translations):

Open the Settings page using either:

• "3-bar" menu button (or Tools menu) > Settings (previously "Options")
• type or paste about:preferences into the address bar and press Enter to load it

In the very tiny search box at the top of the page, type proxy and Firefox should filter to the "Network Settings" section.

Click the Settings button, select "No Proxy" near the top of the dialog, and click OK near the bottom of the dialog.

Any difference?

Thank you for the cert:

Issuer CN = DigiCert Global Root G1A

Setting "No Proxy" usually works around the problem when users are getting this fake certificate.