Client is getting 'Expired SSL Server Certificate' exception page when browsing the HTTPS website.
I can't seem to load my.earthlink.net anymore without getting a certificate error. Never had that problem before, just in the last 2-3 weeks. IE loads it. | Firefox Support Forum | Mozilla
How to trust a self-signed SSL certificate in IE11 and Edge | by Ali Kamalizade | Medium
SSL Certificate Not Trusted Error - How to Fix Quick Guide
Karaf https SSL Not Working in Chrome getting ssl_server_cert_untrusted_issuer - Stack Overflow