Changes

|description=The core infrastructure in the Firefox client to send back telemetry Telemetry and FHR data. Include Includes the common mechanism to record, view and submit data like histograms and , the telemetry Telemetry environment as well as and custom pings. <br>This module does ''not'' include responsibility for every piece of submitted telemetry Telemetry data. Each team/module is responsible for their own histogrammeasurements (histograms, scalarscalars, and other ping submissions, etc.).

|source_dirs=toolkit/components/telemetry, toolkit/content/aboutTelemetry.*