Edit

Share via

SitePerProcess

  • Article

Enable site isolation for every site

Supported versions

  • On Windows and macOS since 77 or later

Description

The 'SitePerProcess' policy can be used to prevent users from opting out of the default behavior of isolating all sites. Note that you can also use the IsolateOrigins policy to isolate additional, finer-grained origins.

If you enable this policy, users can't opt out of the default behavior where each site runs in its own process.

If you disable or don't configure this policy, a user can opt out of site isolation. (For example, by using "Disable site isolation" entry in edge://flags.) Disabling the policy or not configuring the policy doesn't turn off Site Isolation.

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

  • Boolean

Windows information and settings

Group Policy (ADMX) info

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

Example value

Enabled

Registry settings

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

Example registry value

0x00000001

Mac information and settings

  • Preference Key name: SitePerProcess
  • Example value:
<true/>

See also