Information about the .xpi (xpi) file type

Below is all the information we have available on file about the .xpi (xpi) file type.

Cross-Platform Installer Module. A .xpi file is an installer module file, used to install packages.

XPInstall (Cross-Platform Install) is a technology used by the Mozilla application Suite (Mozilla Firefox, Mozilla Thunderbird and others) for installing application extensions - allowing the functionality of the application to be extended. A .xpi file contains such an application extension.

A .xpi file is simply a zip file that contains a install script (install.js) or manifest file (install.rdf), plus other files required by the extension to be installed. The contents of a .xpi file can be viewed by renaming the file extension to .zip and then treating it as a .zip file.

.xpi files can be installed into FireFox by simply opening the file in FireFox (either clicking on a link to download a .xpi file or drag-and-drop a .xpi file into FireFox). FireFox knows that .xpi files are installer extensions and will install the extension for you.

The following links provide further information related to the .xpi file extension:

Where this is available we would like to include file format information on .xpi files, as well as information on how to view or open files of type .xpi. If you know of any information which we have missed then please let us know.