Not quite. Try using Panopticlick [0] for an overview of how your browser can be tracked. Less unique is better. There's also sometimes new methods discovered to track users, but that's not something you would usually care about.

Firefox has good settings you can set in about:config [1].

If you don't have WebRTC disabled, there's a good chance a service can get your public IP address directly.

[0] https://panopticlick.eff.org/ [1] https://www.privacytools.io/#about_config