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ThirdPartyStoragePartitioningBlockedForOrigins

  • Article

Disable third-party storage partitioning for specific top-level origins

Supported versions

  • On Windows and macOS since 115 or later

Description

This policy lets you set a list of URL patterns that specify top-level origins for which third-party storage partitioning (partitioning of cross-origin iframe storage) should be disabled.

If this policy isn't set or a top-level origin doesn't match one of the URL patterns, then the value from DefaultThirdPartyStoragePartitioningSetting will be used.

Note that the patterns you list are treated as origins, not URLs, so you shouldn't specify a path. For detailed information about valid origin patterns, see https://go.microsoft.com/fwlink/?linkid=2095322.

Supported features

  • Can be mandatory: Yes
  • Can be recommended: No
  • Dynamic Policy Refresh: Yes
  • Per Profile: Yes
  • Applies to a profile that is signed in with a Microsoft account: No

Data type

  • List of strings

Windows information and settings

Group Policy (ADMX) info

  • GP unique name: ThirdPartyStoragePartitioningBlockedForOrigins
  • GP name: Disable third-party storage partitioning for specific top-level origins
  • GP path (Mandatory): Administrative Templates/Microsoft Edge/Content settings
  • GP path (Recommended): N/A
  • GP ADMX file name: MSEdge.admx

Example value

www.example.com

[*.]example.edu

Registry settings

  • Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge\ThirdPartyStoragePartitioningBlockedForOrigins
  • Path (Recommended): N/A
  • Value name: 1, 2, 3, ...
  • Value type: List of REG_SZ

Example registry value

SOFTWARE\Policies\Microsoft\Edge\ThirdPartyStoragePartitioningBlockedForOrigins\1 =

www.example.com

SOFTWARE\Policies\Microsoft\Edge\ThirdPartyStoragePartitioningBlockedForOrigins\2 =

[*.]example.edu

Mac information and settings

  • Preference Key name: ThirdPartyStoragePartitioningBlockedForOrigins
  • Example value:
<array>
  <string>www.example.com</string>
  <string>[*.]example.edu</string>
</array>

See also