disconnect-tracking-protection VS Ultimate.Hosts.Blacklist

Right, but Firefox’s ETP blocks Statcounter’s JS (see https://github.com/disconnectme/disconnect-tracking-protecti... which is where, I believe, Mozilla source their ETP blocklist from).

Is there a particular reason portmaster uses the depricated and unofficial Disconnect.me Ad Domains (DM-AD) found at https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt rather than the official up-to-date list found at https://github.com/disconnectme/disconnect-tracking-protection/blob/master/services.json ?

You're wrong. People have noticed that they use Whiteops (now called HUMAN Security) browser fingerprinting.

The lists are part of an open source project that can be found on Github.

Like Microsoft Edge has shared that they use Disconnect's list. Which list is being used by Brave?

However the ultimate proof that it’s effective is that advertisers use it: a quarter of the top 10,000 websites globally use fingerprinting (https://www.zdnet.com/article/a-quarter-of-the-alexa-top-10k-websites-are-using-browser-fingerprinting-scripts/) and basically every company you’ve heard of uses it: https://github.com/disconnectme/disconnect-tracking-protection/blob/master/descriptions.md

Firefox Focus is based on the Mozilla/Firefox/Disconnect tracking block-lists. (https://github.com/disconnectme/disconnect-tracking-protection)

Edge and Firefox use lists provided by Disconnect. I find it quite lacking. If you take a look at their GitHub, it's only occasionaly updated and there's a lot of ignored open issues.

I see what you're saying. I don't expect that will have much, if any, effect. First, their block list is limited: https://github.com/disconnectme/disconnect-tracking-protection/blob/master/services.json

https://github.com/Ultimate-Hosts-Blacklist/Ultimate.Hosts.B...

Don't forget about hosts.deny (but you probably need it at your router if you are behind one).

You might also look into HOSTS file editors and lists of servers to block. HOSTS is a single file you can edit on a Windows machine using a standard text editor. I used to follow this closely so I don't have a recommendation on which list to use, but here's a possible starting point: https://github.com/Ultimate-Hosts-Blacklist/Ultimate.Hosts.Blacklist

I think the main source I use that doesn't seem to be in rethinkDNS is the Ultimate Hosts Blacklist's hosts and/or hosts.deny files.

So it presumably has the same function as a hosts file. You can find examples like this which is portable to any Linux (or Windows) installation.

Here's an additional 630k+ blocks for you. Super easy to use. https://github.com/Ultimate-Hosts-Blacklist/Ultimate.Hosts.Blacklist

Downloads and stores hosts blacklist as a part of the environment

One thing I can suggest that will ALWAYS work is blocking known ad websites on host file level: https://github.com/Ultimate-Hosts-Blacklist/Ultimate.Hosts.Blacklist (or equivalent, there's a lot of resources for it if you look it up)