Specify extensions users must allow in order to navigate using InPrivate mode
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 139, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge\Extensions User Configuration\Administrative Templates\Microsoft Edge\Extensions Description
This policy lets you specify a list of extension IDs that the user must explicitly allow to run in InPrivate mode in order to enable InPrivate browsing. If users don't allow all listed extensions to run in InPrivate mode, they're unable to navigate using InPrivate. If any extension in the list isn't installed, InPrivate navigation is blocked. This policy only applies when InPrivate mode is enabled. If InPrivate mode is disabled using the InPrivateModeAvailability policy, this policy has no effect. Example value: abcdefghijklmnopabcdefghijklmnop
Registry
HKLM
Software\Policies\Microsoft\Edge HKCU
Software\Policies\Microsoft\Edge Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
Applying both scopes creates an ambiguous configuration (computer takes precedence over user). Only do this intentionally.
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Specify extensions users must allow in order to navigate using InPrivate mode
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 139, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\MandatoryExtensionsForInPrivateNavigation]
; List values: enter one value per line in the builder UI.More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Specify extensions users must allow in order to navigate using InPrivate mode
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\MandatoryExtensionsForInPrivateNavigation'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Intune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Specify extensions users must allow in order to navigate using InPrivate mode
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
# HKLM:\Software\Policies\Microsoft\Edge\MandatoryExtensionsForInPrivateNavigation: List values: enter one value per line in the builder UI.
# No testable registry values are available for this state.
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Specify extensions users must allow in order to navigate using InPrivate mode
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\MandatoryExtensionsForInPrivateNavigation'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.SCCM scripts
# Exported from gporais.com
# Policy: Specify extensions users must allow in order to navigate using InPrivate mode
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Specify extensions users must allow in order to navigate using InPrivate mode
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
# HKLM:\Software\Policies\Microsoft\Edge\MandatoryExtensionsForInPrivateNavigation: List values: enter one value per line in the builder UI.
# No testable registry values are available for this state.
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Specify extensions users must allow in order to navigate using InPrivate mode
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\MandatoryExtensionsForInPrivateNavigation'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.