This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Buscar en Ayuda

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Error - same serial number in certificates

  • 1 respuesta
  • 1 tiene este problema
  • 9 visitas
  • Última respuesta de cor-el

more options

Error - same serial number in certificates (root,intermediate,ca,sertificat). Same serial numbers in Intermediate and CA. you can help?

Error - same serial number in certificates (root,intermediate,ca,sertificat). Same serial numbers in Intermediate and CA. you can help?

Todas las respuestas (1)

more options

Try to rename the cert8.db file (cert8.db.old) and delete the cert_override.txt file in the Firefox profile folder to remove intermediate certificates and exceptions that Firefox has stored.

If that has helped to solve the problem then you can remove the renamed cert8.db.old file.

Firefox will automatically store intermediate certificates that servers send in the Certificate Manager for future use.

You can use this button to go to the current Firefox profile folder: