Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

The certificate is not trusted because the issuer certificate is not trusted error for Cert issued by internal CA.

  • 3 replies
  • 5 have this problem
  • 6 views
  • Last reply by cor-el

more options

We have deployed a certificate created by an internal Windows CA on a tomcat web site. When we use IE to browse to the site the page loads without issue. When we use Firefox we get : This Connection is Untrusted and under technical details: site.name:port uses an invalid security certificate. The certificate is not trusted because the issuer certificate is not trusted. (Error code: sec_error_untrusted_issuer) Any idea why?

We have deployed a certificate created by an internal Windows CA on a tomcat web site. When we use IE to browse to the site the page loads without issue. When we use Firefox we get : This Connection is Untrusted and under technical details: site.name:port uses an invalid security certificate. The certificate is not trusted because the issuer certificate is not trusted. (Error code: sec_error_untrusted_issuer) Any idea why?

All Replies (3)

more options

FF doesn't know about your internal Windows CA. It therefore treats the cert issued by your CA as untrusted.
Get a cert for your site from a CA which already is listed in the FF certificate store.

more options

Is there way way to make FF aware of our internal Windows CA enterprise wide?

more options

You will have to export the certificate in IE and import the certificate in Firefox or otherwise install the certificate in Firefox.