UBlock Origin

uBlock Origin on Firefox Still the most complete browser blocker, and Firefox is now where it runs in full, on desktop and on Android alike. It ships with sensible filter lists switched on, stays light on memory and processor time, and lets anyone who wants more add lists, pick page elements to hide or block scripts site by site. Housemates can ignore all of that: installed with its defaults, it simply works. The catch is the browser. With Chrome's Manifest V2 shutdown, the full extension lost its Chrome Web Store listing, so anyone tied to Chrome needs the Lite version instead. It is free and open source and asks for no donations.