This is kind of a stupid ChatGPT article.
No, this will not effectively help to reduce the fingerprint of your Browser.
A LOT more tracking services are integrated into the Firefox browser in various places (like New Tab page, Sync, Pocket, Shavar, Google Safebrowsing, OSCP, etc pp).
I wrote a more detailed article about this, and got an "as good as possible" as a result.
But yeah, please please start to use a Host Firewall where you can block on a per-domain and per-port and per-process basis (like LittleSnitch, OpenSnitch etc) to validate your assumptions. UIs will always lie to you, including the one from Firefox.
[1] https://cookie.engineer/weblog/articles/firefox-privacy-guid...
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