![firefox issuer certificate is unknown firefox issuer certificate is unknown](https://nastaboden.com/lzv/0XCTIJWNpmRzK0A5KnB_gQHaFj.jpg)
When server sends the certificate it chooses the shortest path to root: USERTrust RSA Certification Authority (self-signed).
#FIREFOX ISSUER CERTIFICATE IS UNKNOWN WINDOWS#
Windows Server 2008 R2 manages automatically trusted certificates, so your server could get the next configuration:
![firefox issuer certificate is unknown firefox issuer certificate is unknown](https://codychen.me/img/2020/04/17/01.jpg)
Added the USERTrust RSA Certification Authority Certificate to the server (MMC > Certificates > Trusted Root Certification Authorities > Certificates).USERTRust RSA Certification Authority Certificate acquired from SSL-Tools at.Added the Gandi Intermediate Certificate to the server (MMC > Certificates > Intermediate Certification Authorities > Certificates).Gandi Intermediate Certificate acquired from Gandi per instructions at (SHA2 Standard certificate).
![firefox issuer certificate is unknown firefox issuer certificate is unknown](http://4.bp.blogspot.com/-DeIr_7QL_GI/Vnbq2LFrKoI/AAAAAAAAAS0/ym_eIrTGBCk/s1600/2015-12-20_12-24-57.png)
I've tried a few things and Googled around but the problem won't go away. It appears that there is something wrong with the certification path. On Chrome and IE, there are no errors being thrown. Everything seemed to be installed correctly except that there is an error being thrown in Firefox only. Other sites, like youtube (using HTTPS), load without errors.A website wants to switch an SSL certificate from Network Solutions to Gandi. However, when I try to open I get the following error: secerrorunknownissuer. On the one hand it's annoying, but on the other hand, their security mindset is one of the reasons Firefox is so much safer than IE. The Mozilla people erred on the side of caution by making this impossible. He wanted to TURN OFF THE CHECK COMPLETELY.
#FIREFOX ISSUER CERTIFICATE IS UNKNOWN HOW TO#
On a Windows 7 machine, I installed the latest version of Firefox (40.0.3). He wasn't asking how to add an exception, or fix a broken certificate. Fixing SECERRORUNKNOWNISSUER for Site Owners Regardless of whether you’re getting this error because of a legacy Symantec certificate or just because your certificate’s CA isn’t trusted by Firefox, you really only have one choice: You need to get another certificate. The certificate is not trusted because the issuer certificate is unknown. This is what i get as an warning in Mozilla Firefox when trying to load my web site: vozilo.rs uses an invalid security certificate. Mozilla Firefox Support, Call +1-80, Firefox Help, Firefox download. I found that this is a problem of the certificate chain being incomplete. We are running our website using a squid-reverse SSL proxy and Firefox would keep complaining 'secerrorunknownissuer' as you stated, yet every other browser was OK. We had the same problem with a Comodo wildcard 'positive ssl' cert.