Installing root certificate authority in Firefox (Windows)

  1. Open the Options window.

  2. Select Privacy & Security in the menu on the left side, scroll to the bottom and click the View Certificates…​ button.

  3. Select the Authorities tab and click the Import…​ button.

  4. Find the certificate file named wrc-root-ca.crt you previously downloaded, select it and click the Open button.

  5. Check the Trust this CA to identify websites option and click the OK button to install the certificate.