Firefox (Orange Firefox ) > Options > Options > Advanced > Encryption
Certificates > View Certificates

Your Certificates - these are the certificates that you have both private and public key to. These certificates could be used for a number of things, such as signing email, decrypting messages, accessing a website, etc. What these certificates do are defined by the key usage.

People - These are the certificates that your computer has stored, yet does not have the private key to.

Servers - These are the certificates that have been installed manually from a website and do not contain the private key. Some website are untrusted because of SSL Certificate problems. When you add an exception so that you can view these websites, it installs an SSL Certificate here.

Authorities - These are the Root Certificates that Firefox trusts. Any personal certificate that falls underneath any of these roots will be trusted (unless the certificate is revoked or expired). The Root certificates that come with Firefox are called Built-In Objects as they ship with a fresh install of Firefox. The list also includes any intermediate certificates that have been installed and are trusted.

Thank you. I have a further question or two. How do I export the public key?

Firefox (Orange Firefox ) > Options > Options > Advanced >Certificates > Authorities > Export

Thank you.