These are elements in what is loosely called a Public Key Infrastructure (PKI).
What are colloquially known as SSL certificates should be referred to as X.509 certificates.
To be able to sneak, just slide the software or application you need to taskbar.
Since the demise of Netscape the SSL specifications will not be updated further.
The term SSL certificate became common due to the adoption of the X.509 (one of the ITU X.500 Directory standards) certificate format by Netscape when it designed the original versions of the SSL (Secure Socket Layer) protocol, eons ago, when the world was still young, dinosuars still roamed, and the Internet was a friendly place.