Tighten your browser's tracking protection, one setting at a time.

Firefox · Desktop (Windows, Mac, Linux)

Check Enhanced Tracking Protection in Firefox

Firefox blocks many trackers already. Confirm it is on, and pick Standard or Strict.

1. 01

   Open Firefox settings

   Do this

   Click the menu button (three lines) at the top right, then Settings.

   You should see

   A Settings tab opens.

   Undo or troubleshoot

   Close the tab; nothing has changed yet.

   I have done this step
2. 02

   Go to Privacy & Security

   Do this

   Choose Privacy & Security on the left and find Enhanced Tracking Protection.

   You should see

   You see Standard, Strict and Custom.

   Undo or troubleshoot

   If your device is managed by work or school, some settings may be locked; ask your administrator instead of trying to override them.

   I have done this step
3. 03

   Choose Standard or Strict

   Do this

   Standard suits most people. Choose Strict if you accept that a few sites may break.

   You should see

   Firefox asks you to reload tabs; the choice is now selected.

   Undo or troubleshoot

   Select Standard again to go back to the default.

   I have done this step
4. 04

   Test the sites you rely on

   Do this

   Open one site you sign in to, play a short video, and go to a shop's checkout page without paying. Reload each once.

   You should see

   Sign-in, playback and the checkout page work as before.

   Undo or troubleshoot

   If one site breaks, undo only the last change you made, or add an exception for that one site. Do not switch off all protection, and do not clear all cookies by default — that signs you out everywhere. For one broken site, click the shield icon in the address bar and turn protection off for that site only.

   I have done this step