For a very long time i have recommended Firefox hardened with the 'arkenfox' user.js and some crucial extensions for anyone that cares about privacy and security, not because i'm any sort of Firefox fanboy (i hate Mozilla) but because i see Firefox as the only candidate that is best suited to privacy hardening at this time. In other words, i believe Firefox to be the lessor evil, but evil nonetheless. It's a very sad state of affairs but that's where we're at.
To know more about why all modern web browsers are crap, i highly recommend the articles, How to choose a browser for everyday use?, Mozilla - Devil Incarnate and my own article, The Mozilla Monster. My only niggles with the first piece is that i don't see uMatrix as being irreplaceable and i certainly don't see Pale Moon as a viable alternative to a hardened Firefox.