Firefox Health Report (Obsolete)

Firefox Health Report (FHR) is obsolete and no longer ships with Firefox. This documentation will live here for a few more cycles.

Firefox Health Report is a background service that collects application metrics and periodically submits them to a central server. The core parts of the service are implemented in this directory. However, the actual XPCOM service is implemented in the data_reporting_service.

The core types can actually be instantiated multiple times and used to power multiple data submission services within a single Gecko application. In other words, everything in this directory is effectively a reusable library. However, the terminology and some of the features are very specific to what the Firefox Health Report feature requires.

• Architecture
• Payload Format
• Identifiers

Legal and Privacy Concerns

Because Firefox Health Report collects and submits data to remote servers and is an opt-out feature, there are legal and privacy concerns over what data may be collected and submitted. Additions or changes to submitted data should be signed off by responsible parties.