Perform the following steps to import the key store containing the client certificate key pair in Firefox:
- Click on Edit | Preferences.
- Click on the Advanced button.
- Click on the Encryption tab.
- Click on the View Certificates button. The Certificate Manager window should open up.
- Click on the Your Certificates tab.
- Click on the Import... button.
- Browse to the location where you saved the jbcp_clientauth.p12 file and select it. You will need to enter the password (that is, changeit) that you used when you created the file.
The client certificate should be imported, and you should see it on the list.