Tracking Protection

Tracking generally refers to the collection of a person’s browsing data across multiple sites. The Tracking Protection feature uses a list provided by Disconnect to identify and block trackers.

You can read more about tracking and the standards Disconnect uses to create its list here. Learn more about the lists used by Firefox for Tracking Protection.

A shield icon will appear in your address bar whenever Firefox blocks tracking domains.

tracking protection 42

To see which resources are being blocked, you can open the web console and look for messages under the Security tab.

Block lists in Firefox

You can change the block list used to block third-party trackers. By default, Private Browsing with Tracking Protection uses the Disconnect.me basic protection list. You can change this to use the Disconnect.me strict protection list instead.

  • The basic protection list blocks commonly known analytics trackers, social sharing trackers and advertising trackers. However, the basic protection list allows some known content trackers to reduce website breakage.
  • The strict protection list blocks all known trackers, including analytics trackers, social sharing trackers and advertising trackers as well as content trackers. The strict list will break some videos, photo slideshows and some social networks.

Change your block list

  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Click Privacy on the leftClick Privacy & Security on the left and go to the Tracking Protection section.
  3. Click the Change Block List button next to Use Tracking Protection in Private WindowsUse Tracking Protection in Private Browsing to block known trackersUse Tracking Protection to block known trackers and select the block list you want to use.
  4. Click Save Changes. You will see a "Restart Firefox" dialog box with the message Firefox must restart to change block lists.
  5. Click the OK button in the "Restart Firefox" dialog box.
  6. After Firefox restarts, you can close the OptionsPreferences tab.

How to turn Tracking Protection on

You can choose to turn Tracking Protection on all the time, for Private Browsing only or not at all. You may choose to disable Tracking Protection for a particular site or for all sites.

  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Click Privacy & Security on the left and go to the Tracking Protection section.
    Fx57TrackingProtection-new
  3. Choose between the following options:
    • Always: Keep Tracking Protection on as you browse.
    • Only in private windows: Turns Tracking Protection on only if you're using Private Browsing.
    • Never: Turns off Tracking Protection for all sites.

Tracking Protection is enabled by default when you're in a Private Browsing window. You may choose to disable Tracking Protection for a particular site or for all sites.

Turn off Tracking Protection for individual sites

  1. The shield icon will appear when Firefox is actively blocking trackers on a page. Click the shield icon to bring up the Control Center.
  2. In the Control Center, click Disable protection for this session.
    Disable tracking protection 42 tracking protection off 57
  3. Once Tracking Protection is disabled, a shield icon with red strikethrough tracking protection off fxos will appear in your address bar.
To re-enable Tracking Protection, click the shield icon again and click Enable Protection.

Since Private Browsing mode doesn’t keep any information about your browsing session, when you disable Tracking Protection for a site, it only lasts for this session. When you start a new Private Browsing session, Tracking Protection will be turned on again for all sites.

Turn off Tracking Protection for all sites

  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Click Privacy on the leftClick Privacy & Security on the left and go to the Tracking Protection section.
  3. Uncheck the box next to Use Tracking Protection in Private WindowsUse Tracking Protection in Private Browsing to block known trackers.
    privacy menu tp tp privacy menu 50 Fx56Privacy&Security-Tracking
  4. Close the tab to save your changes.
Note: You can also turn off Tracking Protection from the Private Browsing home page:
tracking protection private browsing


If you're already in a Private Browsing window, type about:privatebrowsing in the address bar and press the Enter key to go to the Private Browsing home page.

Clicking on the green check-marked button will turn Tracking Protection off. If Tracking Protection is already turned off, you can turn it back on from the Private Browsing home page by clicking the same button, which will look like this: Fx48TrackingOff

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