Journalist Peter Welchering and Manfred Kloiber, and Comidio director Herrman Sauer decided to investigate the telemetry tracking of Firefox Focus (known as Firefox Klar in Germany).Īccording to the report, telemetry is not limited to what is listed above. Additionally, the data will reveal features of the application that have been used.Īdjust GMBH is a big data specialist known for tracking and analytics services. The summaries include information on 'whether the app has been in active use recently and when'.

Firefox Focus furthermore sends anonymous summaries 'occasionally' that reveal ' how often the application has been used'.

Data includes an advertising ID, IP address, timestamp, country, language and locale, operating system, and app version.

For new installs, an 'anonymous 'attribution' request is sent to adjust servers containing information on how the app was downloaded.

Data is sent to the adjust backend, not to Mozilla.Mozilla uses a third-party software development kit by German company adjust GMBH that it built into Firefox Focus that is connected to a data collecting Internet service backend run by adjust GMBH.

Mozilla's Support website reveals information on the anonymous usage data collecting of Firefox and Firefox Focus on mobile devices.

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