One easy way to check is to visit a browser’s content setting page and privacy policy. The privacy webpage should outline if your data is shared and why. It’s why the <a href="%(privacy)s">Firefox privacy notice</a> is easy to read and easy to find.
Un maniera facile de verificar lo es consultar le parametros de contento e le politica de confidentialitate del navigator. Le pagina web sur le confidentialitate deberea explicar si tu datos es compartite e proque. Pro isto le <a href="%(privacy)s">Aviso de confidentialitate de Firefox</a> es facile a leger e a trovar.