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!

Ce site disposera de fonctionnalités limitées pendant que nous effectuons des opérations de maintenance en vue de vous proposer un meilleur service. Si un article ne règle pas votre problème et que vous souhaitez poser une question, notre communauté d’assistance est prête à vous répondre via @FirefoxSupport sur Twitter, et /r/firefox sur Reddit.

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Untrusted SSL Certificate in Firefox but not other browsers

  • 2 réponses
  • 11 ont ce problème
  • 43 vues
  • Dernière réponse par duff614

more options

Some Firefox users experience an untrusted SSL certificate error even though the SSL certificate is purchased from Network Solutions. Issue occurs in multiple versions of Firefox (3.6, 4.0.1, 5.0). Not all Firefox users experience the untrusted certificate error. Does not occur in other browsers (IE, Chrome).

Some Firefox users experience an untrusted SSL certificate error even though the SSL certificate is purchased from Network Solutions. Issue occurs in multiple versions of Firefox (3.6, 4.0.1, 5.0). Not all Firefox users experience the untrusted certificate error. Does not occur in other browsers (IE, Chrome).

Toutes les réponses (2)

more options

A test confirms that the server sends all intermediate certificates, so there shouldn't be a problem with Firefox.

Possible causes of such errors are that the system click is set to the wrong date and time or that Firefox has stored in the past a certificate that has now expired.


Visitors that have the problem can try to remove the stored intermediate certificates that are used with that connection.

  • Tools > Options > Advanced > Encryption: Certificates > View Certificates : Authorities

Stored intermediate certificates show as "Software Security device" and the build-in root certificates show as "Builtin Object Token".
Don't remove the latter.

Rename the file cert8.db to cert8.db.old in the Firefox Profile Folder to remove all intermediate certificates that Firefox has stored by visiting secure websites.
If that helped to solve the problem then you can remove the renamed file cert8.db.old unless you have user certificates that you may want to export first and import them in the new file.
Otherwise you can restore the certificates by renaming (copying) the file back to cert8.db
Firefox will automatically store new intermediate certificates when you visit websites that send them.

more options

Thanks for the response. It looks like somehow the certificate chain had broken somehow, so while FF was seeing the certificate and knew it was from Network Solutions it was unable to complete the chain to a root CA, reapplying the chain of certs on our Apache server was able to fix the problem.