Value
Verified with Mozilla Firefox v8.2 — updated on July 10, 2026
Supported on: Firefox 149.0.2 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Mozilla\Firefox\AI Controls\PDF Image Alt Text User Configuration\Administrative Templates\Mozilla\Firefox\AI Controls\PDF Image Alt Text Description
Controls AI-generated alternative text for images in PDF documents. If set to "available", PDF alt text is accessible to users and can be enabled or disabled. If set to "blocked", PDF alt text is disabled and users will not see the feature. For on-device AI, any models already downloaded are removed.
Registry
HKLM
Software\Policies\Mozilla\Firefox\AIControls\PDFAltText HKCU
Software\Policies\Mozilla\Firefox\AIControls\PDFAltText 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: Value
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Firefox 149.0.2 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox\AIControls\PDFAltText]
"Value"="available"More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Value
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Firefox 149.0.2 or later
$path = 'HKLM:\Software\Policies\Mozilla\Firefox\AIControls\PDFAltText'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Value' -Value 'available' -Type StringIntune 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: Value
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Firefox 149.0.2 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Mozilla\Firefox\AIControls\PDFAltText' -Name 'Value' -Expected 'available' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Value
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Firefox 149.0.2 or later
$path = 'HKLM:\Software\Policies\Mozilla\Firefox\AIControls\PDFAltText'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Value' -Value 'available' -Type StringSCCM scripts
# Exported from gporais.com
# Policy: Value
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Firefox 149.0.2 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: Value
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Firefox 149.0.2 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Mozilla\Firefox\AIControls\PDFAltText' -Name 'Value' -Expected 'available' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Value
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Firefox 149.0.2 or later
$path = 'HKLM:\Software\Policies\Mozilla\Firefox\AIControls\PDFAltText'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'Value' -Value 'available' -Type StringBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.