We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

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

This thread was archived. Please ask a new question if you need help.

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

  • 3 majibu
  • 5 wana tatizo hili
  • 6 views
  • Last reply by cor-el

rmorrissey
rmorrissey
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)

christ1
christ1
  • Top 25 Contributor
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.

rmorrissey
rmorrissey Mwenye swali
more options

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

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

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