BlockAboutConfig

Block access to Advanced Preferences (about:config).

Compatibility

Firefox	Firefox ESR	Firefox Enterprise
Available since 60	Available since 60	Available since 149

CCK2 Equivalent: disableAboutConfig
OMA-URI: BlockAboutConfig
Preferences Affected: N/A

Examples

policies.json

{
  "policies": {
    "BlockAboutConfig": true
  }
}

JSON schema

BlockAboutConfig JSON schema

{
  "type": "boolean"
}

Windows (GPO)

Software\Policies\Mozilla\Firefox\BlockAboutConfig = 0x1 | 0x0

macOS

<dict>
  <key>BlockAboutConfig</key>
  <true/> | <false/>
</dict>