The SSL Certificate allows for the display of block notifications over HTTPS. The installation of the certificate is a technical requirement for all filtering providers that wish display HTTPS notifications. The certificate can be downloaded in the Tools section of the Dashboard as shown below. There are embedded instructions on the page that can be saved for standalone installations, as well as a link to our help documentation.
We have a comprehensive walkthrough for installing the the certificate in our Installing SSL Certificates article.
The SSL certificate is installed by default when the Windows Agent is installed on a computer. This includes a configuration update to Firefox which changes Firefox's behavior to the use Certificate Store of the operating system, rather than Firefox's Certificate Store.
MSP/Partner organizations automatically download the whitelabeled SSL certificate, which uses an alternative name in the certificate and instructions to maintain transparency of our service.