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Developer Documentation
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:
Page actions
Display small icons in the address bar, but only for specific pages |
Browser actions
Display small icons in the toolbar, optionally with a custom popup |
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 the extension system
- Developer's Guide: Get detailed information on using each feature and API
Also check out the discussion group: chromium-extensions