Navigator: appCodeName property

Baseline
Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The appCodeName read-only property of the Navigator interface is always "Mozilla", in any browser. This property is kept only for compatibility purposes.

Note: Do not rely on this property to return a real product name. All browsers return "Mozilla" as the value of this property.