How to Disable Telemetry Data Collection on Firefox

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Disable Firefox Telemetry

Telemetry is a type of data collection system that collects engineering data about your browsing history. Most of the data that is collected is hardware and customization based, however it does also contain a portion of usage statistics. The data is collected anonymously and is used to improve browser performance in newer versions. Privacy advocates are against telemetry data, especially when apps and services opt-in by default. You can also read How To Disable Telemetry and Data Collection in Windows 10 and Regain Your Privacy.

How to Disable Telemetry Data Collection on Firefox

First we’ll cover the simpler items to disable. These can be found in the Firefox Settings.

  • Open Firefox and in the address bar type about:preferences#privacy to open the Firefox Settings and go to the Privacy section
  • Scroll down to the Firefox Data Collection and Use section and uncheck everything
    Firefox Data Collection

In Firefox 93, Mozilla introduced Contextual and Sponsored Suggestions in the Address Bar. Unfortunately, this means that they need to collect data that you type into the address bar to offer those suggestions.

  • Open Firefox and in the address bar type about:preferences#privacy to open the Firefox Settings and go to the Privacy section
  • Scroll down to the Address Bar – Firefox Suggest section
  • Uncheck Include Occasional Sponsored Suggestions and Contextual Suggestions
    Firefox Contextual Suggestions Address Bar

For the more advanced settings, you can individually disable some hidden settings. Change these with caution as they could break some features that you use in Firefox.

  • Open Firefox and in the address bar type about:config
  • In the Search bar, search for each one of these settings and double-click on them to change the setting to False except for the one that says True:
    devtools.onboarding.telemetry.logged = false
    toolkit.telemetry.updatePing.enabled = false
    browser.newtabpage.activity-stream.feeds.telemetry = false
    browser.newtabpage.activity-stream.telemetry = false
    browser.ping-centre.telemetry = false
    toolkit.telemetry.bhrPing.enabled = false
    toolkit.telemetry.enabled = false
    toolkit.telemetry.firstShutdownPing.enabled = false
    toolkit.telemetry.hybridContent.enabled = false
    toolkit.telemetry.newProfilePing.enabled = false
    toolkit.telemetry.reportingpolicy.firstRun = false
    toolkit.telemetry.shutdownPingSender.enabled = false
    toolkit.telemetry.unified = false
    toolkit.telemetry.updatePing.enabled = false
    toolkit.telemetry.reportingpolicy.firstRun = false
    toolkit.telemetry.unified = false
    toolkit.telemetry.archive.enabled = false
    devtools.onboarding.telemetry.logged = false
    toolkit.telemetry.bhrPing.enabled = false
    datareporting.healthreport.uploadEnabled = false
    datareporting.policy.dataSubmissionEnabled = false
    datareporting.sessions.current.clean = true
    datareporting.healthreport.uploadEnabled = false
    datareporting.policy.dataSubmissionEnabled = false
    datareporting.sessions.current.clean = true
  • Search for toolkit.telemetry.server, double-click on it and delete the value of the server

Once you’ve made all of these changes, restart Firefox and all of the telemetry data collection should be disabled. As Firefox releases updates, we’ll keep this article updated if new features are rolled out as opt-in and could cause a privacy concern.


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