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Firefox and Thunderbird: Beyond Browsing and Email by Peter D. Hipson

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Chapter 16. Writing an Extension

Firefox uses extensions to enhance its functionality. An extension is a package consisting of chrome modifications and executable content (usually in JavaScript). Extensions are installed using the Extensions Manager, found on the Tools menu.

Extensions provide varied functionality enhancements, variety, and versatility. There are navigation extensions, humor extensions, searching extensions, and ...

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