Add a certificate to macOS

Perform this procedure to add the certificate to the Keychain Access application on a Mac.

How to

  1. Open the Keychain Access app.
  2. If necessary, unlock the application and enter the administrative password to the computer.
  3. In the Keychains area, click System.
  4. Do one of these steps:
    • Drag and drop the certificate from a location on your computer to the list of System keychains.
    • In the application menu, click File > Import Items… and select the certificate.
  5. Navigate to the certificate and open it.
  6. In the certificate, click the arrow next to Trust.
  7. In the Trust settings, select Always Trust for each option.