external-protocol-flooding VS AmIUnique

Because someone figured out that being able to open programs from a browser can be used to track people, and so it was disabled in Tor Browser

try https://schemeflood.com/

Following the article, I went ahead and did this test, https://schemeflood.com/

There are many other methods for tracking this kind of thing, another recent example is https://schemeflood.com/ which was built by the good people at FingerprintJS:

The identifier based on applications you have installed you are talking about, is this: https://schemeflood.com/. The thing with this way to identify is that the box opens multiple times in around a few seconds, while the popup you are talking about stays the same.

I go the opposite way. I trust a company that takes my money to pay its costs to keep my privacy. As opposed to a company who "doesn't know who I am". (Apart from unique fingerprint https://amiunique.org/ over many queries over many months)

You're not completely wrong, but that ship has sailed a long time ago: https://amiunique.org

Until browser fingerprinting is addressed, there will be no real privacy.

You are. Compare the fingerprints of your two browsers: https://amiunique.org, https://coveryourtracks.eff.org. Very likely, the fingerprints are very similar. For anonymity, use Tor.

Browser Fingerprint Checker

Guarda qua: https://amiunique.org/

It’s mostly client-side stuff, you can access browser’s properties like canvas size, plugins, hardware, sensors. Try visiting https://amiunique.org/ You’ll get the idea.

https://amiunique.org/

https://coveryourtracks.eff.org/