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.

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.

Get SEC_ERROR_UNKNOWN_ISSUER when FF is starting and open default https page

  • 3 uphendule
  • 1 inale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu cor-el

more options

My home page in FF is https://portal.local/ Certificate is enterprise CA signed In windows cert storage root CA certinicate is present In FF setting security.enterprise_roots.enabled;true but when FF startting i have error SEC_ERROR_UNKNOWN_ISSUER. btw if i press F5 on this tab connection is established and i can see my home page. FF on start use internal cert storage ? This trouble start from FF 67.0 in FF 66.05 good work.

My home page in FF is https://portal.local/ Certificate is enterprise CA signed In windows cert storage root CA certinicate is present In FF setting security.enterprise_roots.enabled;true but when FF startting i have error SEC_ERROR_UNKNOWN_ISSUER. btw if i press F5 on this tab connection is established and i can see my home page. FF on start use internal cert storage ? This trouble start from FF 67.0 in FF 66.05 good work.

All Replies (3)

more options

Do you possibly have this root certificate installed in Firefox ?

Does it work if you install this certificate in Firefox and set the trust bit to make it work as a rot certificate ?

  • Options/Preferences -> Privacy & Security
    Certificates: View Certificates
more options

No. This root certificate not installed in FF Yes. If install our root cert in FF site on start FF working fine. But! I don't want use FF cert storage (security.enterprise_roots.enabled;true). In Windows cert storage this cert is installed via AD. When refreshing this page after 10-12 sec after start it's work fine. but on starting FF i have SEC_ERROR_UNKNOWN_ISSUER

more options

Only added certificates are imported if you set this pref.