This entire thread is filled with people comparing browser results on a site that breaks down underlying fingerprint techniques, while asking questions like, "is there a way for me to disable WebGL?", and "I wonder if they block localhost port scanning?".

I understand what the original posted link is talking about, but the specific thread you're currently on is very clearly talking about more than whether or not Panoptoclick's tracking script is blocked. They're talking about how well different browsers can resist the techniques it uses[0]. Why else would anyone be comparing their results to Tor?

[0]: https://wiki.mozilla.org/Security/Fingerprinting

If the thing in the OP doesn't do what a bunch of the comments here are discussing -- it is indeed important to point that out.

I had assumed it did, cause why else would we be discussing it here, and neither the OP post nor the FF setting are very clear about what it does. So I would have been thinking it was protecting me.