{ -brand-name-firefox-focus } blocks a wide range of common trackers by default including social trackers and those sticky ones that come from things like { -brand-name-facebook } ads.
Mae { -brand-name-firefox-focus } yn rhwystro ystod eang o dracwyr cyffredin fel rhagosodiad gan gynnwys tracwyr cymdeithasol a'r rhai gludiog hynny sy'n dod o bethau fel hysbysebion { -brand-name-facebook }.