A daily updated filename extension database!

XPI file extension

The table below provides useful information about the .xpi file extension. It answers questions such as:

  • What is the .xpi file?
  • What program do I need to open a .xpi file?
  • How can the .xpi file be opened, edited or printed?
  • How can I convert .xpi files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Mozilla XPInstall Package

XPI file is a Mozilla XPInstall Package. XPInstall is 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. An XPI 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.
Category: Archive files
Application: Mozilla Firefox
Mime-type: application/x-xpinstall
Magic number: -
Magic string: -
Sample: -
XPI aliases:
XPI related links:
XPI related extensions:

Other types of files may also use the .xpi file extension.

🚫 The .xpi file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

api, cpi, dpi, pi, pxi, spi, xi, xip, xli, xoi, xp, xpj, xpk, xpl, xpo

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Calamus Document
Adobe Photoshop Ink Colors Setup
WebObjects API File
WWF RAW Game Model
DB/TextWorks Exported Record Skeleton Definitions
NMRView Peak List
Xscript Package
MS-DOS Code Page Information
Lifo-Pro Consumer Price Index
Atari 8-bit Marco Pixel Editor Image

🔴 Can't open a .xpi file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .xpi file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .xpi file extension, write to us!

🔴 Rate our XPI page

Please help us by rating our XPI page on a 5-star rating system below. (1 star is poor, 5 star is excellent)

4 of 5 stars (13 votes)
Thanks for voting!
Invalid vote.
Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文