SEC_ERROR_UNKNOWN_ISSUER to every site that use HSTS.
please help me with this.
All Replies (2)
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites
https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message
https://support.mozilla.org/en-US/kb/connection-untrusted-error-message
Websites don't load - troubleshoot and fix error messages
http://kb.mozillazine.org/Error_loading_websites
Who is the issuer of the certificate ?
You can check details about the issuer of the certificate and the certificate chain.
- click the "Advanced" button on the error page to show more detail
- click the blue "View Certificate" text to inspect the certificate chain in the Certificate Viewer