Firefox Extension Developers

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Application Extensions

[url=\"http://www.mozilla.org/projects/firefox/extensions/\"][u]developers' information page[/u][/url]

Firefox features a comprehensive overhaul of the Extension Management system, including automated update, installation, uninstallation, and so on. This document describes this system.
Packaging Extensions - Extension Authors Read This!

The method for packaging extensions and themes has been changed so that your extensions and themes will show up in the new manangers. Please follow the following instructions to convert your 0.8 extensions to the format used by versions 0.9 and newer. New extension and theme authors should also read these documents, they describe how to package your files.

* Packaging Extensions
* Packaging Themes

Deployment of Extensions and Themes

These documents give advice on the best ways to distribute Extensions and Themes.

* Distributing Extensions and Themes from Web Pages
* Command Line Options

Updating, Versioning and Compatibility

These documents describe how Versioning and Compatibility works with Extensions and their components. The first document is a must read for all Extension authors who wish to distribute updates to existing extensions and maintain compatibility for a single Extension over a number of Firefox releases. The second document provides some background on how Components are handled in the Extension System.

* Updating Your Extensions and Themes for Firefox 1.0 and Thunderbird 0.9
* Extension Versioning, Update and Compatibility
* Extension Component Registration

Updates to the Extension System Since Firefox 1.0

Significant changes have been made to the way Extensions and Themes are installed and managed since Firefox 1.0.

* Changes to Extension Installation and Management for Firefox 1.1