Before you install the certificate, an error message appears in users' browsers when they access a site that uses HTTPS (this example shows an error message in Firefox).
After you install the certificate, users shouldn't experience a certificate security issue when they browse to sites that the FortiGate performs SSL content inspection on.
Users can view information about the connection and the certificate that's used.
When users view information about the connection, they'll see that it's verified by Fortinet.
When users view the certificate in the browser, they will see which certificate is used and information about that certificate.