Add client certificate to keychain on macOS

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General

Most applications on macOS (previously named OS X) uses Keychain Access, the operating system certificate store, to avoid forcing users to add/import the certificate in all applications where it's used.

This procedure describes how to add a client certificate to Keychain Access.

The common reason for having to do this is having used the Firefox web browser to obtain a client certificate and you wish to make it available to other applications (for example Safari and Cyberduck).

Instructions

  • Launch Keychain Access by opening Finder and navigating Applications -> Utilities -> Keychain Access
  • Make sure the login keychain is selected.
  • Import Items... on File menu.
  • Locate the certificate backup made from Firefox or other web browser.
  • Enter the password chosen backup time which protected the certficate and key backup.
  • If successful, the imported certificate should appear in the list of certificates for the login keychain.