# Using Firefox on Glean This section of docs is designed to be helpful to people instrumenting Firefox Desktop. You may wish to begin with the [Getting Started](getting_started.md) docs. Or, if you're already acquainted with Glean concepts and what FOG is, you might want to know [how to migrate a piece of Firefox Telemetry to Glean](migration.md). ```{toctree} :titlesonly: :maxdepth: 1 :glob: getting_started new_definitions_file * Glean SDK Documentation ```