DisableLaunchOnLogin

Prevent Firefox from launching automatically when the user logs in, and prevent the user from enabling this setting.

When the policy is set to true, Firefox removes any existing launch-on-login entry and hides the Open Firefox automatically when your computer starts up checkbox under Settings > General > Startup. Setting the policy to false has no effect.

Values

Set to true to remove the option to launch Firefox on login, and turn the setting off if it is already on.
Set to false to leave the option available. This is the same as not setting the policy.

Examples

{
  "policies": {
    "DisableLaunchOnLogin": true
  }
}

JSON schema

{
  "type": "boolean"
}

Windows (GPO)

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

macOS

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

Compatibility

Firefox	Firefox ESR	Firefox Enterprise
Available since 155	Not supported	Available since 155

Windows support added in 155, macOS support added in 156. Has no effect on Linux.

Windows and macOS only; Windows in Firefox 155, and macOS in Firefox 156.

CCK2 Equivalent: N/A
OMA-URI: DisableLaunchOnLogin
Preferences Affected: browser.startup.windowsLaunchOnLogin.enabled