Cross-Platform Installer Module

File Format
Name	Cross-Platform Installer Module
Ontology	Electronic File Formats Archiving Cross-Platform Installer Module
Extension(s)	.xpi
MIME Type(s)	application/x-xpinstall

Cross-Platform Installer Module (or just XPI) is the format used to distribute extensions for Mozilla products (Firefox, Thunderbird). The file is a ZIP archive with the extension's files and an install.rdf file in the root directory called the Install Manifest.

Links

• XPI description
• Install Manifest documentation