Mozilla › Firefox › Content Analysis (DLP) › Interception Points › Drag And Drop

Plain Text Only

Computer and userIntune-readyChanged in 8.4ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly

Supported on Firefox 138 or later

8.4

What it does

If this policy is disabled, all formats will be analyzed in what is being dropped, which some DLP agents may not expect. If this policy is enabled or not configured, only the text/plain format will be analyzed in what is being dropped.

What it writes

Hive: HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry key: Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop
Value name: PlainTextOnly
When enabled: DWORD 1
When disabled: DWORD 0

Configure and deploy

Choose a state; 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\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop]
"PlainTextOnly"=dword:00000001

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: Plain Text Only
# Name: ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly
# Scope: Machine
# State: Enabled
# Source: firefox.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop' -Name 'PlainTextOnly' -PropertyType 'DWord' -Value 1

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.

ADMX profile candidate (OMA-URI)

./Device/Vendor/MSFT/Policy/Config/ADMX_firefox/ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly

ADMX SyncML candidate

<SyncML xmlns="SYNCML:SYNCML1.2">
  <SyncBody>
    <Replace>
      <CmdID>1</CmdID>
      <Item>
        <Meta>
          <Format>chr</Format>
          <Type>text/plain</Type>
        </Meta>
        <Target>
          <LocURI>./Device/Vendor/MSFT/Policy/Config/ADMX_firefox/ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly</LocURI>
        </Target>
        <Data>&lt;enabled/&gt;</Data>
      </Item>
    </Replace>
    <Final/>
  </SyncBody>
</SyncML>

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: Plain Text Only
# Name: ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly
# Scope: Machine
# State: Enabled
# Source: firefox.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop' -Name 'PlainTextOnly' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop\PlainTextOnly') | 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: Plain Text Only
# Name: ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly
# Scope: Machine
# State: Enabled
# Source: firefox.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop' -Name 'PlainTextOnly' -PropertyType 'DWord' -Value 1

History 93 retained releases

8.413 Oct 2026
- The policy's own registry value Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop\PlainText~~[removed: Enabled]~~[added: Only]
- Option removed ~~[removed: PlainTextEnabled]~~
- New option [added: PlainTextOnly]
7.220 Aug 2025
- Translations changed; choose a language above to compare its wording.
6.1028 Apr 2025
- Translations changed; choose a language above to compare its wording.
6.92 Apr 2025
- Added in this release.

18 later releases left it unchanged.

Template

Internal name: ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly
Namespace: Mozilla.Policies.Firefox
Template file: firefox.admx
Release: Mozilla Firefox 8.4 · file set a495190075c2a974…

Definition, editor controls and support

Definition

<policy class="Both" displayName="$(string.ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly)" explainText="$(string.ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly_Explain)" key="Software\Policies\Mozilla\Firefox\ContentAnalysis\InterceptionPoints\DragAndDrop" name="ContentAnalysis_InterceptionPoints_DragAndDrop_PlainTextOnly" valueName="PlainTextOnly" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:InterceptionPoints_DragAndDrop" />
      <supportedOn ref="Mozilla.Policies.Firefox:SUPPORTED_FF138_ONLY" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
    </policy>

Editor controls

Supported platforms and category

Mozilla.Policies.Firefox:category:ContentAnalysis
<category displayName="$(string.ContentAnalysis_group)" name="ContentAnalysis" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:firefox" />
    </category>
Mozilla.Policies.Firefox:category:InterceptionPoints
<category displayName="$(string.InterceptionPoints_group)" name="InterceptionPoints" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:ContentAnalysis" />
    </category>
Mozilla.Policies.Firefox:category:InterceptionPoints_DragAndDrop
<category displayName="$(string.InterceptionPoints_DragAndDrop_group)" name="InterceptionPoints_DragAndDrop" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:InterceptionPoints" />
    </category>
Mozilla.Policies.Firefox:category:firefox
<category displayName="$(string.firefox)" name="firefox" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies:Cat_Mozilla" />
    </category>
Mozilla.Policies.Firefox:definition:SUPPORTED_FF138_ONLY
<definition displayName="$(string.SUPPORTED_FF138_ONLY)" name="SUPPORTED_FF138_ONLY" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Mozilla.Policies:category:Cat_Mozilla
<category displayName="$(string.mozilla)" name="Cat_Mozilla" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Mozilla.Policies.Firefox:category:ContentAnalysis
<category displayName="$(string.ContentAnalysis_group)" name="ContentAnalysis" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:firefox" />
    </category>
<strings><string id="Mozilla.Policies.Firefox:ContentAnalysis_group">Content Analysis (DLP)</string></strings>
Mozilla.Policies.Firefox:category:InterceptionPoints
<category displayName="$(string.InterceptionPoints_group)" name="InterceptionPoints" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:ContentAnalysis" />
    </category>
<strings><string id="Mozilla.Policies.Firefox:InterceptionPoints_group">Interception Points</string></strings>
Mozilla.Policies.Firefox:category:InterceptionPoints_DragAndDrop
<category displayName="$(string.InterceptionPoints_DragAndDrop_group)" name="InterceptionPoints_DragAndDrop" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies.Firefox:InterceptionPoints" />
    </category>
<strings><string id="Mozilla.Policies.Firefox:InterceptionPoints_DragAndDrop_group">Drag And Drop</string></strings>
Mozilla.Policies.Firefox:category:firefox
<category displayName="$(string.firefox)" name="firefox" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Mozilla.Policies:Cat_Mozilla" />
    </category>
<strings><string id="Mozilla.Policies.Firefox:firefox">Firefox</string></strings>
Mozilla.Policies.Firefox:definition:SUPPORTED_FF138_ONLY
<definition displayName="$(string.SUPPORTED_FF138_ONLY)" name="SUPPORTED_FF138_ONLY" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Mozilla.Policies.Firefox:SUPPORTED_FF138_ONLY">Firefox 138 or later</string></strings>
Mozilla.Policies:category:Cat_Mozilla
<category displayName="$(string.mozilla)" name="Cat_Mozilla" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Mozilla.Policies:mozilla">Mozilla</string></strings>