Remember that trying to make a browser like Chromium or Firefox hard to fingerprint is harder than it seems. There's a lot of stuff you need to change, includi

Remember that trying to make a browser like Chromium or Firefox hard to fingerprint is harder than it seems. There's a lot of stuff you need to change, including fonts, screen resolution, system memory, user agent details (some browsers also add Sec-CH-UA strings), timezone, along with things like WebGL fingerprinting etc It's also worth noting that you can sometimes actually make yourself more fingerprintable by not properly hiding something, like changing your UA in HTTP requests but not in JavaScript as well. If a website detects such a "quirk", it would be able to fingerprint you with a lot more precision. TL;DR If you really want to stay anonymous and not worry about fingerprinting and trackers — use Tor Browser. It was specifically designed so that everyone has the same fingerprint, and has things like letterboxing to hide resolution etc. It's unlikely you'd be able to do a better job than Tor Browser by modifying your own browser.