How to properly install free SSL from Comodo?

Question

Godaddy

Hello. Tell me, are there any nuances for installing SSL free from Comodo?
The problem is that a secure connection only works on a domain with www.
And in the latest version of Mozilla, it does not work at all, even on www, it says "The certificate is not trusted, because the publisher's certificate chain is missing."
I am trying to install Godaddy hosting in cPanel. It seems to have loaded all the certificates that were issued, attached one main certificate to the domain.
Tell me why it doesn't work in Mozilla, but it works in all other browsers, there is a green padlock.

Answer 1

For those who, like me, have been looking for an answer to this question for a long time:
1) COMODO sent you everything in a ZIP file
2) In the terminal, "connect" three files

cat COMODORSADomainValidationSecureServerCA.crt COMODORSAAddTrustCA.crt AddTrustExternalCARoot.crt  > domain.com.cer

3) In the configuration file of the site in Apache, paste

SSLEngine on
SSLCertificateFile /etc/apache2/ssl/domain.com.crt
SSLCertificateKeyFile /etc/apache2/ssl/domain.com.key
SSLCACertificateFile /etc/apache2/ssl/domain.com.cer

domain.com.crt - also from the ZIP file
4) Restart Apache
5) look at the site, go here https://www.sslshopper.com/ssl-checker.html drive in your domain - everything should be green :)

Answer 2

It is enough to read the Komodo certificate installation guide, it is logical that you skipped the intermediate certificate of the certificate authority, since you did not read the Komodo installation guide

Answer 3

Please provide a link to the manual.
In the control panel, I uploaded all the certificates that were issued:
AddTrustExternalCARoot
COMODORSAAddTrustCA
COMODORSADomainValidationSecureServerCA

Answer 4

I stuffed all the certificates sent by Komodo into one file. Just like this cat cert1.crt cert2.crt certX.crt > final.crt and there were no problems. True, I did authorization via RADIUS on a Wi-Fi access point, but the essence is the same ...

Answer 5

here is another comodo certificate connection