If you want to customize Google Chrome, you've come to the right place. An extension is a bundle of web code (HTML, JavaScript, perhaps some CSS) that lets you add functionality or a bit of user interface (usually both) to the browser. Examples of extensions include a mail checker, a newsfeed subscriber, and a status monitor.

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This documentation is just being written; here's what we have so far. You might also want to look at Other resources. If you just want to make something, go to Get Started.

Other resources