Override Related Website Sets. (obsolete)

Computer and userIntune-readyRelatedWebsiteSetsOverrides

Supported on Microsoft Edge version 121-152, Windows 7 or later

155.0.4283.62

What it does

OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge 152. This policy provides a way to override the list of sets Microsoft Edge uses for Related Website Sets Each set in the browser's list of Related Website Sets must meet the requirements of a Related Website Set. A Related Website 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, and a map from a site to all its ccTLD variants. For more information on how Microsoft Edge uses Related Website Sets, see https://github.com/WICG/first-party-sets. All sites in a Related Website Set must be a registrable domain served over HTTPS. Each site in a Related Website Set must also be unique, which means a site can't be listed more than once in a Related Website Set. When this policy is given an empty dictionary, Microsoft Edge uses the public list of Related Website Sets. For all sites in a Related Website Set from the replacements list, if a site is also present on a Related Website Set in the browser's list, then that site will be removed from the browser's Related Website Set. After this step, the policy's Related Website Set is added to the Microsoft Edge's list of Related Website Sets. For all sites in a Related Website Set from the additions list, if a site is also present on a Related Website Set in Microsoft Edge's list, then the browser's Related Website Set is updated so that the new Related Website Set can be added to the browser's list. After the browser's list has been updated, the policy's Related Website Set is added to the browser's list of Related Website Sets. The browser's list of Related Website Sets requires that for all sites in its list, no site is in more than one set. This requirement is also required for both the replacements list and the additions list. Similarly, a site can't be in both the replacements list and the additions list. Wildcards (*) aren't supported as a policy value, or as a value within any Related Website Set in these lists. This policy is deprecated as of Microsoft Edge version 144 with the deprecation of Related Website Sets. 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" ] } ] } Compact 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"]}]}

What it writes

Hive: HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry key: Software\Policies\Microsoft\Edge

Options

Option	Type	Registry value	Allowed values
Override Related Website Sets.	Text	`RelatedWebsiteSetsOverrides`	Up to 1000000 characters

Configure and deploy

Choose a state and the option values; the output below is generated from the template for exactly that.

Enabled · Computer · template defaults

Registry file (.reg)

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge]
"RelatedWebsiteSetsOverrides"=""

PowerShell

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: Override Related Website Sets. (obsolete)
# Name: RelatedWebsiteSetsOverrides
# Scope: Machine
# State: Enabled
# Source: msedge.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge' -Name 'RelatedWebsiteSetsOverrides' -PropertyType 'String' -Value ''

The OMA-URI is an inferred ADMX-backed Policy CSP candidate derived from the source ADMX file name and policy name.
Some Microsoft policies use built-in Policy CSP pages whose area names don't match the ADMX file name, so verify the candidate against Microsoft Learn before deployment.
The generated payload is incomplete because one or more ADMX element values were not supplied: RelatedWebsiteSetsOverrides

ADMX profile candidate (OMA-URI)

./Device/Vendor/MSFT/Policy/Config/ADMX_msedge/RelatedWebsiteSetsOverrides

Intune remediation scripts

Detection

$ErrorActionPreference = 'Stop'
$reasons = [System.Collections.Generic.List[string]]::new()

function Test-RegistryValueExists {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    return $null -ne (Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue)
}

function Test-RegistryValueEquals {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $Kind,
        [Parameter(Mandatory = $true)][object] $Expected
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    $valueObject = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue
    if ($null -eq $valueObject) {
        return $false
    }

    $actual = $valueObject.$Name
    switch ($Kind) {
        'String' { return [string]$actual -ceq [string]$Expected }
        'ExpandString' { return [string]$actual -ceq [string]$Expected }
        'DWord' { return [uint32]$actual -eq [uint32]$Expected }
        'QWord' { return [uint64]$actual -eq [uint64]$Expected }
        'MultiString' {
            $actualArray = @($actual)
            $expectedArray = @($Expected)
            if ($actualArray.Count -ne $expectedArray.Count) { return $false }
            for ($index = 0; $index -lt $actualArray.Count; $index++) {
                if ([string]$actualArray[$index] -cne [string]$expectedArray[$index]) { return $false }
            }
            return $true
        }
        'Binary' {
            $actualArray = [byte[]]$actual
            $expectedArray = [byte[]]$Expected
            if ($actualArray.Length -ne $expectedArray.Length) { return $false }
            for ($index = 0; $index -lt $actualArray.Length; $index++) {
                if ($actualArray[$index] -ne $expectedArray[$index]) { return $false }
            }
            return $true
        }
        default { return [string]$actual -ceq [string]$Expected }
    }
}

# Policy: Override Related Website Sets. (obsolete)
# Name: RelatedWebsiteSetsOverrides
# Scope: Machine
# State: Enabled
# Source: msedge.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge' -Name 'RelatedWebsiteSetsOverrides' -Kind 'String' -Expected ''
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\RelatedWebsiteSetsOverrides') | Out-Null
}

if ($reasons.Count -eq 0) {
    Write-Output 'Compliant'
    exit 0
}

$reasons | ForEach-Object { Write-Output $_ }
exit 1

Remediation

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: Override Related Website Sets. (obsolete)
# Name: RelatedWebsiteSetsOverrides
# Scope: Machine
# State: Enabled
# Source: msedge.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge' -Name 'RelatedWebsiteSetsOverrides' -PropertyType 'String' -Value ''

History 37 retained releases

153.0.4234.3211 Sep 2026
- Renamed Override Related Website Sets. ~~[removed: (deprecated)]~~[added: (obsolete)]
- Description ~~[removed: DEPRECATED:]~~[added: OBSOLETE:] This policy is ~~[removed: deprecated. It is currently supported but will become obsolete in a future release.]~~[added: obsolete and doesn't work after Microsoft Edge 152.] This policy provides a way to override the list of sets Microsoft …
  Whole description, marked
  ~~[removed: DEPRECATED:]~~[added: OBSOLETE:] This policy is ~~[removed: deprecated. It is currently supported but will become obsolete in a future release.]~~[added: obsolete and doesn't work after Microsoft Edge 152.] This policy provides a way to override the list of sets Microsoft Edge uses for Related Website Sets Each set in the browser's list of Related Website Sets must meet the requirements of a Related Website Set. A Related Website 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, and a map from a site to all its ccTLD variants. For more information on how Microsoft Edge uses Related Website Sets, see https://github.com/WICG/first-party-sets. All sites in a Related Website Set must be a registrable domain served over HTTPS. Each site in a Related Website Set must also be unique, which means a site can't be listed more than once in a Related Website Set. When this policy is given an empty dictionary, Microsoft Edge uses the public list of Related Website Sets. For all sites in a Related Website Set from the replacements list, if a site is also present on a Related Website Set in the browser's list, then that site will be removed from the browser's Related Website Set. After this step, the policy's Related Website Set is added to the Microsoft Edge's list of Related Website Sets. For all sites in a Related Website Set from the additions list, if a site is also present on a Related Website Set in Microsoft Edge's list, then the browser's Related Website Set is updated so that the new Related Website Set can be added to the browser's list. After the browser's list has been updated, the policy's Related Website Set is added to the browser's list of Related Website Sets. The browser's list of Related Website Sets requires that for all sites in its list, no site is in more than one set. This requirement is also required for both the replacements list and the additions list. Similarly, a site can't be in both the replacements list and the additions list. Wildcards (*) aren't supported as a policy value, or as a value within any Related Website Set in these lists. This policy is deprecated as of Microsoft Edge version 144 with the deprecation of Related Website Sets. 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" ] } ] } Compact 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"]}]}
- Supported on Microsoft Edge version 121[added: -152], Windows 7 or later
- Supported on ~~[removed: SUPPORTED_WIN7_V121;]~~[added: OBSOLETE_WIN7_V121_V152;] resolved; Blank;
150.0.4078.8016 Jul 2026
- Already present in the first release ChangeIntel keeps.

35 later releases left it unchanged.

Template

Internal name: RelatedWebsiteSetsOverrides
Namespace: Microsoft.Policies.Edge
Template file: msedge.admx
Release: Microsoft Edge 155.0.4283.62 · file set 0a733b0040dbbf02…

Definition, editor controls and support

Definition

<policy class="Both" displayName="$(string.RelatedWebsiteSetsOverrides)" explainText="$(string.RelatedWebsiteSetsOverrides_Explain)" key="Software\Policies\Microsoft\Edge" name="RelatedWebsiteSetsOverrides" presentation="$(presentation.RelatedWebsiteSetsOverrides)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Edge:RelatedWebsiteSets" />
      <supportedOn ref="Microsoft.Policies.Edge:OBSOLETE_WIN7_V121_V152" />
      <elements>
        <text id="RelatedWebsiteSetsOverrides" maxLength="1000000" valueName="RelatedWebsiteSetsOverrides" />
      </elements>
    </policy>

Editor controls

<presentation id="RelatedWebsiteSetsOverrides" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions"><textBox refId="RelatedWebsiteSetsOverrides"><label>Override Related Website Sets.</label></textBox></presentation>

Supported platforms and category

Microsoft.Policies.Edge:category:RelatedWebsiteSets
<category displayName="$(string.RelatedWebsiteSets_group)" name="RelatedWebsiteSets" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Edge:microsoft_edge" />
    </category>
Microsoft.Policies.Edge:category:microsoft_edge
<category displayName="$(string.microsoft_edge)" name="microsoft_edge" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Microsoft.Policies.Edge:definition:OBSOLETE_WIN7_V121_V152
<definition displayName="$(string.OBSOLETE_WIN7_V121_V152)" name="OBSOLETE_WIN7_V121_V152" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Microsoft.Policies.Edge:category:RelatedWebsiteSets
<category displayName="$(string.RelatedWebsiteSets_group)" name="RelatedWebsiteSets" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Edge:microsoft_edge" />
    </category>
<strings><string id="Microsoft.Policies.Edge:RelatedWebsiteSets_group">Related Website Sets Settings</string></strings>
Microsoft.Policies.Edge:category:microsoft_edge
<category displayName="$(string.microsoft_edge)" name="microsoft_edge" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Microsoft.Policies.Edge:microsoft_edge">Microsoft Edge</string></strings>
Microsoft.Policies.Edge:definition:OBSOLETE_WIN7_V121_V152
<definition displayName="$(string.OBSOLETE_WIN7_V121_V152)" name="OBSOLETE_WIN7_V121_V152" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Microsoft.Policies.Edge:OBSOLETE_WIN7_V121_V152">Microsoft Edge version 121-152, Windows 7 or later</string></strings>