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!

Avatar for Username

Cerca nel supporto

Attenzione alle mail truffa. Mozilla non chiederà mai di chiamare o mandare messaggi a un numero di telefono o di inviare dati personali. Segnalare qualsiasi attività sospetta utilizzando l'opzione “Segnala abuso”.

Ulteriori informazioni

Questa discussione è archiviata. Inserire una nuova richiesta se occorre aiuto.

Firefox 8 not displaying addons, error code:sec_error_unknown_issuer

  • 3 risposte
  • 8 hanno questo problema
  • 1 visualizzazione
  • Ultima risposta di cor-el

bmagan
bmagan
more options

I receive the following error message when opening the addons tool bar...

support.mozilla.com uses an invalid security certificate.

The certificate is not trusted because the issuer certificate is unknown.

(Error code: sec_error_unknown_issuer)

I receive the following error message when opening the addons tool bar... support.mozilla.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)

Tutte le risposte (3)

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

Check the date and time in the clock on your computer: (double) click the clock icon on the Windows Taskbar.

bmagan
bmagan Utente che ha posto la domanda
more options

Thanks for the reply, but I checked and my date and time system settings are correct. Is there another reason why this would be happening. I have uninstalled/reinstalled firefox a number of times with no success.

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

Did you check the details of that certificate like the issuer and when it is valid by retrieving the certificate?

  • Click the link at the bottom of the error page: "I Understand the Risks"

Let Firefox retrieve the certificate: "Add Exception" -> "Get Certificate".

  • Click the "View..." button and inspect the certificate and check who is the issuer.

You can see more Details like intermediate certificates that are used in the Details pane.