I second this. I'm so happy I switched to LibreWolf a few years ago. I get all of the benefits of the arkenfox user script, plus even more without having to install or maintain it myself, and in addition to that I get Pocket and various hardcoded telemetry, etc, being stripped out — I can trust them to turn Firefox into an actually good focused browser no matter what Mozilla does upstream.
Plus it doesn't go as far as Mulvad, which explicitly states that they intend down the road to start ignoring user's configuration settings in an effort to prevent users from making their browser more fingerprintable, instead of letting users decide what balance of usability and privacy they want (for instance, I still use Firefox Sync). That's fine for them to do, and I wish them the best to block, because they're not really taking away user freedom since someone can just use an alternative browser, but that's not something I want to use personally. LibreWolf lets me choose.
Plus it doesn't go as far as Mulvad, which explicitly states that they intend down the road to start ignoring user's configuration settings in an effort to prevent users from making their browser more fingerprintable, instead of letting users decide what balance of usability and privacy they want (for instance, I still use Firefox Sync). That's fine for them to do, and I wish them the best to block, because they're not really taking away user freedom since someone can just use an alternative browser, but that's not something I want to use personally. LibreWolf lets me choose.