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This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. 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 NavigatorID.appCodeName always returns 'Mozilla', on 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.


codeName = window.navigator.appCodeName 


codeName is the internal name of the browser as a DOMString.




Specification Status Comment
HTML Living Standard
The definition of 'NavigatorID.appCodeName' in that specification.
Living Standard Initial definition

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)
on Web Workers ? ? 28 (28) ? ? ?
Feature Android Chrome for Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)
on Web Workers ? ? ? 28.0 (28) ? ? ?

See also


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 Last updated by: abbycar,