I've hated my experience with resistFingerprinting enabled. I can't get dark themes, my clock and times are always wrong, you're locked to en-US, no WebGL, etc.; basically any feature that could make the web nicer and have content tailored for be is now weaponized for fingerprinting. I've recently switched off fingerprint resistance and moved to a script blocker as the sites I do trust do offer a nicer experience I've been missing out on.
I really hate that firefox sets prefers-color-scheme: light with resistFingerprinting [0] even if the site is implemented in such a way that the color scheme selection provides no information to the server (no JS, no external resources loaded dependent on the color scheme). Even using no-preference would have been better - then the site could at least choose to make a dark theme the default.
> you're locked to en-US
Ugh, this will only lead to even more websites ignoring the Accept-Language header and just guessing based on location derived from the IP address.
100% I hate getting targeted based on my IP -- especially using a VPN. I happen to speak and prefer "en-US", but I don't think it's good for the internet in general.