Setting up SSL Cert with Jellyfin

[LeTechnician]

Hi all!

I'm trying to using Tailscale to secure Jellyfin. I have done the main bit but I'm trying to resolve the pesky "not secure" nudge from my browser. I have generated the TLS certs through Tailscale and received a .crt and .key file. 

I'm just not sure what I'm supposed to do with these in order to prevent the nudge from ocurring?

[TheDreadPirate]

You have to add those certs to the PC's/phone's certificate trust store.