{ -brand-name-firefox-relay } will store the websites where you’ve used your email masks, and label your masks with those websites so you can easily identify them. Turning this off means you won’t be able to see where you’ve used each mask, and your account names will no longer sync between devices.
{ -brand-name-firefox-relay } immagazinara le sitos web ubi tu ha usate tu mascas email, e etiquettara tu mascas con ille sitos web assi que tu pote facilemente identificar los. Disactivar los significa que tu non potera vider ubi tu ha usate cata masca, e tu nomines de conto non se synchronisara plus inter apparatos.