Fingerprinting on firefox

I am using firefox 86.0 on a Mac and I have seen this information about fingerprinting: 

[1] https://www.mozilla.org/en-US/firefox/features/block-fingerprinting/

But when I use a tool like 

[2] https://coveryourtracks.eff.org

it tells me that the browser has an unique fingerprint, and can be easily identified. 

One of the page is incorrect! Is the fingerprinting blocked? Or is it not?