LibRedirect[1] is a currently maintained fork of PrivacyRedirect, with additional features (PrivacyRedirect is no longer maintained since late 2021) [2]
Yes, true, I was bummed when I saw that Privacy Redirect is unmaintained but then a few users on Github mentioned LibRedirect and now that I'm using it, I'm really happy, it works great
[1] - https://addons.mozilla.org/en-US/firefox/addon/libredirect/