Important: Chrome will be removing support for Chrome Apps on all platforms. Chrome browser and the Chrome Web Store will continue to support extensions. Read the announcement and learn more about migrating your app.
Manifest - Key
This value can be used to control the unique ID of an extension, app, or theme when it is loaded during development.
To get a suitable key value, first
install your extension from a
(you may need to
upload your extension
or package it manually).
Then, in your
data directory, look in the file
You will see the key value filled in there.