Hello There!

Extensions are small software programs that can modify and enhance the functionality of Google Chrome.

You write them using web technologies like HTML, JavaScript, and CSS. So if you know how to write web pages, you already know most of what you need to know to write extensions.

Here are some examples of what you can build with extensions:

Toolstrips Display small toolbars in Google Chrome's chrome.

Page actions Add buttons to the Omnibox that get displayed for specific pages.

Content scripts Modify the look and behavior of web pages.

This website contains all the information you need to build extensions. Start with one of these sections:

• Getting Started: Build a simple "Hello, World" extension in about 5 minutes.
• Overview: Learn about the fundamental design points of Google Chrome's extension system.
• Developer's Guide: Get detailed information on using each feature and API.

Also check out the discussion group: chromium-extensions.