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Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

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New Contributor

Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

In HongKong firefox didn't support this link with error.

(Error code: sec_error_unknown_issuer)

tried two version 10.0.2 and 11. SUSE Linux Enterprise Server 10 (x86_64) VERSION = 10 PATCHLEVEL = 4 LSB_VERSION="core-2.0-noarch:core-3.0-noarch:core-2.0-x86_64:core-3.0-x86_64"

5 REPLIES
Site Moderator

Re: Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

That is a problem with that server because it doesn't send a required intermediate certificate (VeriSign Class 3 International Server CA - G3).

You can find the VeriSign intermediate certificates on the VeriSign site and save the code to a text file and use File > Open File to install the certificate.

You need the second certificate from this page.

On this page there are two other intermediate certificates (Class 3 CA - G2 and G3)

New Contributor

Re: Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

Thanks for your reply. So I install second certificate is fine? We are using Secure Site https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR1409

Site Moderator

Re: Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

I got the wrong certificate the first time, I hadn't tested it and I edited my above to give a link to the correct certificate.

It is the second certificate on this page (Secondary SSL Intermediate CA Certificate):

You can inspect the certificate chain via a site like this:

New Contributor

Re: Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

Thanks for provide useful website. Don't understand why will using secure-site-pro secondary cert but it is work. SSL Certificate correctly installed. Thanks again.

Site Moderator

Re: Verisign SSL (Error code: sec_error_unknown_issuer) on firefox 11

You're welcome.

Firefox will store intermediate certificates automatically if you visit a site that sends them, so if you haven't yet visited a site that has send it and then visit a site that doesn't send it, like in your case, then you get that SSL certificate error.