Browser Integration
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This tutorial explains how to create a toolbar extension for Firefox . It provides an overview of how extensions are developed, the tools required to create them, and details on how toolbars are created.
Born Geek » Firefox Toolbar Tutorial
About Browser Extensions Browser extensions allow developers to provide easy access to their browser enhancements by adding elements (like an Explorer Bar) to the default user interface.
Browser Extensions
Extensions allow you to add functionality to Chrome without diving deeply into native code. You can create new extensions for Chrome with those core technologies that you're already familiar with from web development: HTML, CSS, and JavaScript.