Type String
Mandatory Contingent: must be present if the _locales subdirectory is present, must be absent otherwise.
Example
"default_locale": "en"

This key must be present if the extension contains the _locales directory, and must be absent otherwise. It identifies a subdirectory of _locales, and this subdirectory will be used to find the default strings for your extension.

See Internationalization.

Example

"default_locale": "en"

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxOperaFirefox for Android
default_localeChrome Full support YesEdge Full support 14Firefox Full support 48Opera Full support YesFirefox Android Full support 48

Legend

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