Firefox Focus serves two purposes. First, it greatly increases user privacy by blocking any and all user tracking, cookies, and advertisements. Users automatically have a private browsing experience simply by using this browser - there is no need to personally adjust privacy settings or erase one's web history. Second, because sites that track user behavior are blocked, users can experience faster - and less cluttered - internet browsing. In keeping with the dual aims of simplicity and privacy, Firefox Focus does not allow for bookmarks or multiple tabs. However, if simplicity and privacy are you goals, this may be the browser for you. Firefox Focus is currently only available for iOS devices.