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Cross-Platform Installer Module

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Also known as XPInstall, .xpi, XPI, Mozilla Firefox browser extension

XPInstall (Cross-Platform Install) was a technology used by the Mozilla Application Suite, SeaMonkey, Mozilla Firefox, Mozilla Thunderbird and other XUL-based applications for installing Mozilla extensions that add functionality to the main application. Support for XPInstall was removed from Firefox in November 2017 with the release of Firefox 57.

Key facts

File format.name
XPInstall (XPI)
File format.mime
application/x-xpinstall
File format.owner
Mozilla Foundation

via Wikipedia infobox

Official website

Link to the official site · not written by Vinony

Wikidata facts

Instance of
file format
Based on
ZIP
Show 2 more facts
media type
application/x-xpinstall
file extension
xpi
Sources (1)

via Wikidata · CC0

~3 min read

Encyclopedic overview

7 sections
Contents
  • Overview
  • Deprecation
  • Impact
  • Legacy
  • See also
  • References
  • External links

XPInstall (Cross-Platform Install) was a technology used by the Mozilla Application Suite, SeaMonkey, Mozilla Firefox, Mozilla Thunderbird and other XUL-based applications for installing Mozilla extensions that add functionality to the main application. Support for XPInstall was removed from Firefox in November 2017 with the release of Firefox 57.

== Overview == A XPI (pronounced "zippy" and derived from XPInstall) installer module is a ZIP file that contains an install script or a manifest at the root of the file, and a number of data files. XPI files allowed users to install add-ons, themes, and other extensions to customize their Mozilla applications.

Excerpted from Wikipedia’s “Cross-Platform Installer Module” article, available under the CC BY-SA 4.0 licence.