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IsolateOrigins

Enable site isolation for specific origins

Supported versions

  • On Windows and macOS since 77 or later

Description

Specify origins to run in an isolated process.

By default, Microsoft Edge isolates pages from each Site into its own process. This policy enables more granular isolation based on Origin rather than Site. For example, specifying https://subdomain.contoso.com/ will cause pages from https://subdomain.contoso.com/ to be isolated in a different process than pages from other Origins within the https://contoso.com/ Site.

If you enable this policy, each of the named origins in a comma-separated list will run in its own process.

If you disable or don't configure this policy, pages will be isolated on a per-Site basis.

Supported features

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

Data type

  • String

Windows information and settings

Group Policy (ADMX) info

  • GP unique name: IsolateOrigins
  • GP name: Enable site isolation for specific origins
  • GP path (Mandatory): Administrative Templates/Microsoft Edge
  • GP path (Recommended): N/A
  • GP ADMX file name: MSEdge.admx

Example value

https://contoso.com/,https://fabrikam.com/

Registry settings

  • Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge
  • Path (Recommended): N/A
  • Value name: IsolateOrigins
  • Value type: REG_SZ

Example registry value

https://contoso.com/,https://fabrikam.com/

Mac information and settings

  • Preference Key name: IsolateOrigins
  • Example value:
<string>https://contoso.com/,https://fabrikam.com/</string>

See also