How to remove warning in Firefox "Your connection is not secure"?

Question

Mozilla Firefox

Good afternoon! On the local network there is a cluster of two servers (Suse HAWK) that runs Apache. The problem is that when running the Apache service on another server, users (Linux / Firefox) get the error "Your connection is not secure" when accessing, this is solved by adding the certificate to the exceptions, BUT this has to be done every time the service is transferred, even when the certificate has already been added before. How can I disable this warning altogether?

Firefox version - 60

Thank you!

Answer 1

Renew the certificate itself, rather than deal with the symptoms. Your certificate is rotten or Authority has reissued its certificates