Send usage data from Firefox on mobile devices

The Send usage data control appears in the settings menu for many of Mozilla’s mobile products. This controls your sharing of crash, technical, testing, notifications and campaign measurement data.

Below is a summary of what the “send usage data” control covers. Each product privacy notice describes the actual data collection, and for full transparency, you can view the source code repositories for Firefox for iOS, Android, FireTV, Rocket, Focus, Klar and Firefox Reality.

Technical and interaction data

  • Mozilla receives this to improve performance and stability.
  • This data is sent by default to Mozilla on Firefox for iOS, Firefox for Android, Firefox Focus, Firefox for FireTV, Firefox Rocket and Firefox Reality.

Crash and error data

  • Some of our mobile products use developer tools to evaluate the reason for crashes and improve performance and stability.
  • This data is sent to Mozilla by default on Firefox for iOS, Firefox Focus, Firefox for FireTV, Firefox Rocket and Firefox Reality.
    • Firefox Rocket uses Google Firebase, which also receives this data. Learn more.

Feature testing and notification data

  • Some of our mobile products use developer tools to track and test different features and experiences or provide customized notifications.
  • This data is sent by default to Mozilla on Firefox for iOS, Firefox for Android and Firefox Rocket.
    • Firefox Rocket uses Google Firebase, which also receives this data. Learn more.
    • Firefox for iOS and Firefox for Android use LeanPlum, which also receives this data. Learn more.

Campaign measurement and data

  • Some of our mobile products use tracking tools to measure and support our marketing.
  • This data is sent by default to Mozilla on Firefox for Android, Firefox for iOS, Firefox Focus for Android, Firefox Focus for iOS and Firefox Rocket.
    • These products use Adjust, which also receives this data.
    • Firefox Rocket uses Google Firebase, which also receives this data. Learn more.

Frequently Asked Questions

Why do you enable data collection by default?

This helps us gain valuable insight into how our mobile products are performing so that we can improve those products.

Data collection is turned off by default in Firefox Klar. If you enable it, we will only receive the technical and interaction data described above.

Why do you use third-party platforms?

We use third-party platforms for functionality and services that we can’t build internally or when it is more efficient to use another service. Learn more about our use of Firebase, adjust GmbH and LeanPlum.

How do I turn off data collection and reporting?

You can turn off this collection and reporting in the Settings menu:

  • Firefox for iOS: Tap the menu button at the bottom of the screen, followed by the Settings icon (you may need to swipe to the left first). Turn the switch off next to Send Anonymous Usage Data.
  • Firefox for Android: Tap the menu button (either below the screen on some devices or at the top-right corner of the browser) followed by Settings (you may need to tap More first) . Tap on the Privacy section and remove the check mark next to Firefox Health Report.
  • Firefox Focus and Firefox Klar: Tap the settings button at the top-right of the screen. If you are in the browser you may have to hit the Erase button first. Turn the switch off next to Send Usage Data.
  • Firefox Rocket: Tap the menu button (three dots) at the bottom of the screen. Tap Settings, then tap the switch next to Send usage data to turn it on (blue) or off.
  • Firefox for Fire TV: From a website, tap the menu button menu button remote on your remote so that the menu icons appear. Select the settings icon settings icon fire tv . Turn the switch off for Send usage data.
  • Firefox Reality: Click the settings (cogwheel) button. On the next screen, toggle the switch next to Telemetry or Crash Reporting to turn them off or on. Clear means it's not activated.

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