Firefox Focus

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Firefox Focus
Firefox Focus Logo, 2017.svg
Developer(s) Mozilla Foundation
Mozilla Corporation
Initial release November 17, 2016; 17 months ago (2016-11-17)[1]
Development status Active
Type Mobile browser
License MPL

Firefox Focus is a privacy-focused browser from Mozilla, available for the Apple iPhone, iPad, iPod touch mobile devices and Android smartphones and tablets.[2] It is also known as Firefox Klar in German-speaking context[3] in order to avoid the ambiguity with the German news magazine FOCUS.[4] On Android, it uses Blink engine, unlike Firefox for Android, which uses the same Gecko engine as its desktop version.

Tracking protection[edit]

Firefox Focus is designed to block online trackers, including third-party advertising, with the end goal of both improving browsing speed and protecting users' privacy. Content blocking is achieved using the Disconnect block lists,[5] which are also used in Firefox on desktop systems for the Tracking Protection feature.[6]

Firefox Focus contains software telemetry enabled by default which sends information on usage parameters back to Mozilla's servers; Firefox Klar has this telemetry disabled by default.[7]

See also[edit]


  1. ^ "Introducing Firefox Focus – A Free, Fast Private Browser for iPhone - Mozilla". Mozilla Foundation. Retrieved 27 July 2017. 
  2. ^ Mozilla. "Firefox Focus Browser". Retrieved 27 July 2017. 
  3. ^ Mozilla. "Was ist Firefox Klar?". Retrieved 27 July 2017. 
  4. ^ "I can't find Firefox Focus in Germany, Austria or Switzerland | Firefox Klar Help". Retrieved 2017-07-31. 
  5. ^ focus-android: Firefox Focus: The privacy browser - Browse like no one’s watching, Mozilla Mobile, 2017-11-13, retrieved 2017-11-13 
  6. ^ "Tracking Protection | Firefox Help". Retrieved 2017-11-13. 
  7. ^ Telemetry Readme - Firefox Focus Github "Builds of "Focus for Android" have telemetry enabled by default ("opt-out") while builds of "Klar for Android" have telemetry disabled by default."

External links[edit]