Information
This policy controls whether web page elements from a domain other than that in the address bar can set cookies.
The recommended state for this setting is Enabled.
Rationale:
Allowing third-party cookies could potentially allow tracking of your web activities by third-party entities which may expose information that could be used for an attack on the end-user.
Impact:
Disabling third-party cookies could cause some websites to not function as expected (e.g., Microsoft 365 or Salesforce).
Solution
To establish the recommended configuration via GP, set the following UI path to Enabled:
Computer Configuration\Policies\Administrative Templates\Microsoft Edge\Block third party cookies
Note: This Group Policy path may not exist by default. It is provided by the Group Policy template MSEdge.admx/adml that can be downloaded from: Download Microsoft Edge for Business - Microsoft.
Default Value:
Enabled - Users can change this setting.