Some websites and ads attach hidden trackers that collect your browsing info long after you’ve left. Only { -brand-name-firefox } Private Browsing has tracking protection to block them automatically.
Mae rhai gwefannau a hysbysebion yn atodi tracwyr cudd sy'n casglu'ch manylion pori ymhell ar ôl i chi adael. Dim ond Pori Preifat { -brand-name-firefox } sydd â'r diogelwch tracio i'w rhwystro'n awtomatig.