DefaultBrowserSettingEnabled

Control whether the user can set Firefox as the default browser.

When the policy is set to false, the default browser check is disabled and the controls for setting Firefox as the default browser are removed from the preferences. When it is set to true, the default browser check runs at startup and users cannot turn it off.

To suppress the startup check without removing the controls from browser preferences, use the DontCheckDefaultBrowser policy instead.

Compatibility

Firefox	Firefox ESR	Firefox Enterprise
Available since 154	Not supported	Available since 154

CCK2 Equivalent: N/A
Preferences Affected: browser.shell.checkDefaultBrowser

Examples

{
  "policies": {
    "DefaultBrowserSettingEnabled": false
  }
}

JSON schema

{
  "type": "boolean"
}

Windows (GPO)

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

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DefaultBrowserSettingEnabled

Value (string):

<enabled/> or <disabled/>

macOS

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