Privacy

I'm not an expert but if you're on Linux, you might look into Firedragon.

It's a browser from the Garuda Linux team, originally based on LibreWolf, now based on Floorp but bringing over some of the security features of LibreWolf.

https://firedragon.garudalinux.org/

Floorp is generally solid but has less hardening than Librewolf - it's more focused on features than extreme privacy, but still way better than standard Firefox for security since it disables telemetry and has decent defaults.