Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

Avatar for Username

Search Support

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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

SEC_ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED

  • 2 uphendule
  • 1 inale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu Shocking

Shocking
Shocking
more options

I have imported our AD Enterprise Certificate into Firefox but it continues to give the error; 

"Insecure connection: Invalid security certificate" to the web certificates we issue.

"The certificate is not trusted because it was signed using a signature algorithm that was disabled because that algorithm is not secure." "Error code: SEC_ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED" IE and Chrome do not give any errors regarding these same certificates. How can I find out what "CERT_SIGNATURE_ALGORITHM" is causing the error?

I have imported our AD Enterprise Certificate into Firefox but it continues to give the error; "Insecure connection: Invalid security certificate" to the web certificates we issue. "The certificate is not trusted because it was signed using a signature algorithm that was disabled because that algorithm is not secure." "Error code: SEC_ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED" IE and Chrome do not give any errors regarding these same certificates. How can I find out what "CERT_SIGNATURE_ALGORITHM" is causing the error?

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

What are the connection details in Google Chrome if you click the padlock in the location/address bar?

The Page Info window shows this for the Mozilla Support website.

  • Connection Encrypted (TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, 128 bit keys, TLS 1.2)
Shocking
Shocking Umnikazi wombuzo
more options

Google displays the Secure Lock.

I have uploaded images of the Certificate details from IE.

I think it may be the that the “Thumbprint Algorithm” is sha1?