Share data with Mozilla to help improve Firefox

It's helpful for Mozilla's engineers to be able to measure how Firefox behaves in the real world. As you use Firefox, we receive on a daily basis technical and interaction data.

Telemetry is an opt-in feature. This means that you specifically need to tell Firefox to collect and send this information to Mozilla.

For more about what data we receive and how it's used, see Mozilla's Firefox Browser Privacy Notice.

How do I opt-in or opt-out of sending performance data?

You can turn this on and off at any time with these steps:

  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Select the Advanced panel.
  3. Select the Data Choices tab.
  4. Check or uncheck the box next to Share additional data (i.e., Telemetry).
telemetry 38 thecorrect1 Fx51DataChoices-Telemetry
Note: For more information about the Advanced panel and Data Choices, see this article.
  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Select the Privacy & Security panel.
  3. Scroll down to the Firefox Data Collection and Use section.
  4. Check or uncheck the box next to Allow Firefox to automatically send technical and interaction data to Mozilla.
Fx56Privacy&Security-DataCollection Fx57Privacy&Security-DataCollection Fx61Privacy&Security-DataCollection
Note: To learn about studies, see About Studies. For more information about crash reports, see Mozilla Crash Reporter.

Telemetry Data

To view the information about performance, hardware, usage and customization data collected by Telemetry, enter about:telemetry in the address bar. A Telemetry Data report will open.

Fx59AboutTelemetry
// These fine people helped write this article:AliceWyman, novica, Tonnes, Michele Rodaro, Michael Verdi, scoobidiver, Swarnava Sengupta, lmandel, Théo Chevalier, sidstamm, Lan, Joni. You can help too - find out how.

Was this article helpful? Please wait...

Volunteer for Mozilla Support