Local VPS certificates

[allu62]

It's really not an issue, but all annoying: When accessing a local HTTPS server with self-signed certificate, Firefox displays the "Security Risk" page and I have every time to allow access to my local Hestia CP. I searched the net in order to find a way to add a permanent exception to Firefox, but all the solutions, I found, did not work (maybe because I set Firefox to never remember history?). I posted in the Mozilla discourse forum, but, after weeks, no answer. Maybe there's someone of the great HelioHost community, who can help me. If not for Firefox, then maybe for another browser. Thanks.