This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The value of the
NavigatorID.appCodeName property is
Mozilla", in any browser. This property is kept only for
Mozilla" as the value of this property.
codeName = navigator.appCodeName
The string "
|HTML Living Standard
The definition of 'NavigatorID.appCodeName' in that specification.
|Living Standard||Initial definition|
BCD tables only load in the browser