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Block Edge third party cookies

Overview​

About this script

This script improves your privacy on Windows.

These changes use Windows system commands to update your settings.

This script blocks third-party cookies in Microsoft Edge, enhancing your privacy by reducing tracking across various webpages.

It prevents websites from setting cookies unless they match the domain in the address bar 1. This action limits potential tracking activities by third-party entities, which could otherwise track your web activities and gather information about you 2.

Third-party cookies are enabled and not blocked by default on Edge 1.

Disabling third-party cookies may impact the performance of websites like Microsoft 365 or Salesforce, which depend on these cookies for some of their features 2.

Authorities like The Center for Internet Security (CIS) 1 recommend this script for enhanced security.

Caution
  • This will display the message "Your browser is managed by your organization" on the settings page.
  • This locks settings and prevents them from being changed on the settings page.
  • Some websites may not function properly without third-party cookies.

Technical Details​

This script configures the BlockThirdPartyCookies Edge policy 1 2. Running this script does not require a browser restart for the changes to take effect 1.

This script uses Batch (batchfile) scripting language.

Use with Caution

This script is only recommended if you understand its implications. Some non-critical or features may no longer function correctly after running this script.

Implementation Details

  • Language: batch

  • Required Privileges: Administrator rights

  • Compatibility: Windows only

  • Reversibility: Can be undone using provided revert script

Explore Categories​

This action belongs to Harden Edge privacy category. This category contains scripts designed to enhance privacy settings in Microsoft Edge by reducing tracking mechanisms encountered during web browsing. These scripts do not block data collection conducted directly by Microsoft through Edge. Instead, these scripts empower users by providing... Read more on category page ▶

Apply now​

Choose one of three ways to apply:

  1. Automatically via privacy.sexy: The easiest and safest option.
  2. Manually by downloading: Requires downloading a file.
  3. Manually by copying: Advanced flexibility.

Alternative 1. Apply with Privacy.sexy​

privacy.sexy is free and open-source application that lets securely apply this action easily.

Open privacy.sexy

You can fully restore this action (revert back to the original behavior) using the application.

privacy.sexy instructions
  1. Open or download the desktop application
  2. Search for the script name: Block Edge third party cookies.
  3. Check the script by clicking on the checkbox.
  4. Click on Run button at the bottom of the page.

Alternative 2. Download​

Irreversible Changes

This script is irreversible, meaning there is no straightforward method to restore changes once applied. Exercise caution before running, restoring it may not be possible.

  1. Download the script file by clicking on the button below:

    Download script

  2. Run the script file by clicking on it.

Download revert script​

This file restores your system to its original state, before this script is applied.

Download restore script

Alternative 3. Copy​

This is for advanced users. Consider automatically applying or downloading the script for simpler way.

  1. Open Command Prompt as administrator.
HELP: Step-by-step guide

  1. Click on Start menu

  2. Type cmd

  3. Right click on Command Prompt select Run as administrator

  4. Click on Yes to run Command Prompt

Animation showing how to open terminal as administrator on Windows 11

  1. Copy the following code:
Code to apply changes
:: Configure "BlockThirdPartyCookies" Edge policy
:: Set the registry value: "HKLM\SOFTWARE\Policies\Microsoft\Edge!BlockThirdPartyCookies"
PowerShell -ExecutionPolicy Unrestricted -Command "$registryPath = 'HKLM\SOFTWARE\Policies\Microsoft\Edge'; $data = '1'; reg add 'HKLM\SOFTWARE\Policies\Microsoft\Edge' /v 'BlockThirdPartyCookies' /t 'REG_DWORD' /d "^""$data"^"" /f"
  1. Right click on command prompt to paste it.
  2. Press Enter to apply remaining code.

Copy restore code​

Copy and run the following code to restore changes:

Revert code
:: Restore "BlockThirdPartyCookies" Edge policy
:: Delete the registry value "HKLM\SOFTWARE\Policies\Microsoft\Edge!BlockThirdPartyCookies"
PowerShell -ExecutionPolicy Unrestricted -Command "reg delete 'HKLM\SOFTWARE\Policies\Microsoft\Edge' /v 'BlockThirdPartyCookies' /f 2>$null"

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