Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

RSA certificate SEC_ERROR_UNKNOWN_ISSUER on Windows

  • 2 பதிலளிப்புகள்
  • 1 இந்த பிரச்சனை உள்ளது
  • 1 view
  • Last reply by cor-el

kki-firstclass
kki-firstclass
more options

We bought and installed a Comodo RSA positivessl certificate on our Server. When we enter our domain into the browser the certificate is accepted with Firefox 55.0.3 on Mac But ther are still some issues with Firefox on Windows. Somtimes we get the error "sec error unknown issuer" with a FireFox browser under Windows. We installed the same version of FireFox (55.0.3) and on one computer the certificate is working and on the other one we get the unknowen issuer error and have to accept the certificate manually. Does anyone know how to solve this problem?

We bought and installed a Comodo RSA positivessl certificate on our Server. When we enter our domain into the browser the certificate is accepted with Firefox 55.0.3 on Mac But ther are still some issues with Firefox on Windows. Somtimes we get the error "sec error unknown issuer" with a FireFox browser under Windows. We installed the same version of FireFox (55.0.3) and on one computer the certificate is working and on the other one we get the unknowen issuer error and have to accept the certificate manually. Does anyone know how to solve this problem?

All Replies (2)

philipp
philipp
  • Moderator
more options

you'll have to install all the proper intermediate certs for your site... https://support.comodo.com/index.php?/Knowledgebase/Article/View/241/0/my-certificate-says-it-has-a-nonvalid-digital-signature-what-can-cause-this

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

See also: