caption: Override First-Party Sets.
default: {}
# TODO(b/313073098): Deprecate policy.
desc: |-
This policy provides a way to override the list of sets the browser uses for First-Party Sets features.
Each set in the browser's list of First-Party Sets must meet the requirements of a First-Party Set.
A First-Party Set must contain a primary site and one or more member sites.
A set can also contain a list of service sites that it owns, as well as a map from a site to all of its ccTLD variants.
See https://github.com/WICG/first-party-sets for more information on First-Party Sets are used by <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
All sites in a First-Party Set must be a registrable domain served over HTTPS. Each site in a First-Party Set must also be unique,
meaning a site cannot be listed more than once in a First-Party Set.
When this policy is given an empty dictionary, the browser uses the public list of First-Party Sets.
For all sites in a First-Party Set from the <ph name="REPLACEMENTS">replacements</ph> list, if a site is also present
on a First-Party Set in the browser's list, then that site will be removed from the browser's First-Party Set.
After this, the policy's First-Party Set will be added to the browser's list of First-Party Sets.
For all sites in a First-Party Set from the <ph name="ADDITIONS">additions</ph> list, if a site is also present
on a First-Party Set in the browser's list, then the browser's First-Party Set will be updated so that the
new First-Party Set can be added to the browser's list. After the browser's list has been updated,
the policy's First-Party Set will be added to the browser's list of First-Party Sets.
The browser's list of First-Party Sets requires that for all sites in its list, no site is in
more than one set. This is also required for both the <ph name="REPLACEMENTS">replacements</ph> list
and the <ph name="ADDITIONS">additions</ph> list. Similarly, a site cannot be in both the
<ph name="REPLACEMENTS">replacements</ph> list and the <ph name="ADDITIONS">additions</ph> list.
Wildcards (*) are not supported as a policy value, nor within any First-Party Set in these lists.
All sets provided by the policy must be valid First-Party Sets, if they aren't then an
appropriate error will be outputted.
On <ph name="MS_WIN_NAME">Microsoft® Windows®</ph>, this policy is only available on instances that are joined to a <ph name="MS_AD_NAME">Microsoft® Active Directory®</ph> domain, joined to <ph name="MS_AAD_NAME">Microsoft® Azure® Active Directory®</ph> or enrolled in <ph name="CHROME_BROWSER_CLOUD_MANAGEMENT_NAME">Chrome Browser Cloud Management</ph>.
On <ph name="MAC_OS_NAME">macOS</ph>, this policy is only available on instances that are managed via MDM, joined to a domain via MCX or enrolled in <ph name="CHROME_BROWSER_CLOUD_MANAGEMENT_NAME">Chrome Browser Cloud Management</ph>.
This is the equivalent of the <ph name="RELATED_WEBSITE_SETS_OVERRIDES_POLICY_NAME">RelatedWebsiteSetsOverrides</ph> policy.
Either policy may be used, but this one will be deprecated soon so the <ph name="RELATED_WEBSITE_SETS_OVERRIDES_POLICY_NAME">RelatedWebsiteSetsOverrides</ph> policy is preferred.
They both have the same effect on the browser's behavior.
example_value:
additions:
- associatedSites:
- https://associate2.test
ccTLDs:
https://associate2.test:
- https://associate2.com
primary: https://primary2.test
serviceSites:
- https://associate2-content.test
replacements:
- associatedSites:
- https://associate1.test
ccTLDs:
https://associate1.test:
- https://associate1.co.uk
primary: https://primary1.test
serviceSites:
- https://associate1-content.test
features:
dynamic_refresh: false
per_profile: true
supported_on:
- chrome.*:113-
- chrome_os:113-
- android:113-
- fuchsia:113-
owners:
- [email protected]
- [email protected]
schema:
properties:
additions:
items:
properties:
associatedSites:
items:
type: string
type: array
ccTLDs:
additionalProperties:
items:
type: string
type: array
type: object
primary:
type: string
serviceSites:
items:
type: string
type: array
required:
- primary
- associatedSites
type: object
type: array
replacements:
items:
properties:
associatedSites:
items:
type: string
type: array
ccTLDs:
additionalProperties:
items:
type: string
type: array
type: object
primary:
type: string
serviceSites:
items:
type: string
type: array
required:
- primary
- associatedSites
type: object
type: array
type: object
tags: []
type: dict
Codebase Browser
chromium