Manifest Files - XUL. In this section, we'll see how to put chrome and XUL files into a package and create the manifest files for them.
Packages A package is a set of XUL files and scripts that define the functionality of a user interface. Packages may be installed into Mozilla and referenced with chrome URLs. A package can contain any kinds of files and may be split into subdirectories for different parts of the package. XUL controls - XUL. XUL School Tutorial - XUL. XUL School is a comprehensive add-on development tutorial, focusing on Firefox extension development.
It is recommended that you read through all of it at least once. While Firefox changes rapidly, the content in this tutorial should be up to date and valid. XUL. The Joy of XUL. Intended audience: Application developers and development managers who seek to better understand XUL and why the Mozilla platform is built with it.
Introduction XUL (pronounced "zool") is Mozilla's XML-based user interface language that lets you build feature rich cross-platform applications that can run connected to or disconnected from the Internet. These applications are easily customized with alternative text, graphics, and layout so they can be readily branded or localized for various markets.