What holds one back is that Chrome has made itself indispensable. It's remembered your passwords, your credit cards, your addresses, etc. All part of a plan to keep you happily in its garden.
No conspiracy, just business.
That's the one of the first things I disable when I install a browser or create a new profile. Along with history, third party cookies, search prediction stuff, etc. Also clear all cookies and cache when I exit the browser.
I also use a pihole to block ads and trackers more completely, but I do like having an additional browser-level feature with "enhanced tracking protection"[1] – if it did nothing else, I like simply having the list of attempted-tracker on every site easily available at all times.
[1] https://support.mozilla.org/en-US/kb/enhanced-tracking-prote...
I still use Firefox but it is not way better then ever... they keep removing useful features... especially on mobile where you can't even use most extensions anymore.
But it is Ridiculous that only about 15 out of the thousands of addons work with the latest version of Firefox Mobile.
All of them used to work in the previous engine of Firefox Mobile... nice downgrade.