How to delete telemetry data in Mozilla Firefox

Earlier this week, Mozilla announced that it would allow Firefox users to delete all previously collected telemetry data to comply with the new California Consumer Privacy Act. This feature was rolled out in the Firefox 72 version update, and today we’ll look at how to remove them.

What is telemetry data?

For the uninitiated, telemetry data refers to interaction and technical data collected by browsers. Interaction data includes information such as the number of tabs and windows you open, the number of web pages you visit, the length of your browsing session, and the types of Firefox add-ons you install.

Technical data, on the other hand, refers to information such as the browser version, language, operating system used, PC hardware specifications, and error logs.

Note: Before you begin, update your Firefox browser to the latest version. This method works in Firefox version 72 and later. If you don’t know your Firefox version, you can find it under Help -> About Firefox, accessed from the hamburger menu in the top right corner of the Firefox browser.

Delete telemetry data in Firefox

1. Open Firefox, click the hamburger menu (three horizontal lines) in the top right corner of the browser, and find Options in the list. Alternatively, you can access the options by typing “about:preferences” in the address bar.

2. Select Privacy & Security from the side panel that appears.

3. Scroll down until you find the section titled “Firefox Data Collection and Use.” Here you’ll see a checkbox called “Allow Firefox to send technical and interaction data to Mozilla.” If unchecked, Firefox will delete all telemetry data associated with the browser within 30 days.

That’s a quick guide on how to delete telemetry data from Firefox. Don’t forget to share this with all the privacy-minded Firefox users you know and let us know in the comments if you found this helpful.