Preferences (JSON on one line): registry value Preferences (PreferencesOneLine)ComputerHKLM\Software\Policies\Mozilla\Firefox

Policy ID: PreferencesOneLine
Scope: Computer Configuration, User Configuration
Supported on: Firefox 81 or later, Firefox 78.3 ESR or later
Source: Mozilla Firefox Policy Templates (version 8.3)
Category: Mozilla › Firefox

Registry

Preferences

REG_SZComputerUser

…\Software\Policies\Mozilla\FirefoxHKLM\Software\Policies\Mozilla\Firefox Current key
HKCU\Software\Policies\Mozilla\Firefox

Enabled value: Depends on the option value
Element: -
Value type: REG_SZ
Maximum length: 16384

Apply with .reg · CMD · PowerShell

ComputerMachine-wide setting

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Mozilla\Firefox]

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"Preferences"="<enter value>"

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKLM\Software\Policies\Mozilla\Firefox" /v "Preferences" /t REG_SZ /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKLM:\Software\Policies\Mozilla\Firefox' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\Software\Policies\Mozilla\Firefox' -Name 'Preferences' -PropertyType String -Value '<enter value>' -Force | Out-Null

UserPer-account setting

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Policies\Mozilla\Firefox]

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"Preferences"="<enter value>"

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKCU\Software\Policies\Mozilla\Firefox" /v "Preferences" /t REG_SZ /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKCU:\Software\Policies\Mozilla\Firefox' -Force | Out-Null
New-ItemProperty -Path 'HKCU:\Software\Policies\Mozilla\Firefox' -Name 'Preferences' -PropertyType String -Value '<enter value>' -Force | Out-Null