fenix/docs/telemetry.md

Telemetry

Fenix uses Mozilla's telemetry service (Glean) and LeanPlum to measure feature performance and engagement.

Baseline ping

Fenix creates and tries to send a "baseline" ping when the app goes to the background. This baseline ping is defined by the Glean component and documented in the Android Components repository.

Metrics ping

Fenix creates and tries to send a "baseline" ping. It is defined inside the metrics.yaml file. This ping includes things like wether or not Fenix is currently the default browser.

Events

Fenix sends event pings that allows us to measure feature performance.

Event	Glean Key	Leanplum Key	extras
OpenedApp	app_opened	E_Opened_App	source*
SearchBarTapped	search_bar_tapped		source**
EnteredUrl	entered_url		autocomplete***
PerformedSearch	performed_search		search_suggestion****

• source: The method used to open Fenix (For exmaple: app_icon or link) ** source: The view the user was on when they initiated the search (For example: Home or Browser) *** autocomplete: A boolean that tells us wether the URL was autofilled by an Autocomplete suggestion **** search_suggestion: A boolean that tells us wether or not the search term was suggested by the Awesomebar