.XPI File Overview

File Extension: XPI
File Type Description: Mozilla Installer Package
File Type Developer: Mozilla
Primary Associated Software: Mozilla Firefox
Primary Software Developer: Mozilla

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What is File Extension XPI?

Mozilla developed the XPI file extension, also know as a Mozilla Installer Package file, for the Mozilla Thunderbird software package. Internal website statistics show that XPI files are most popular with users in China and those running the Windows 10 operating system. Statisically, these users are most likely running the Google Chrome internet browser.

Associated Developers and Software

Mozilla Firefox by Mozilla
Mozilla Thunderbird by Mozilla

Top XPI User Languages

Top XPI File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular XPI File Countries

Top User Operating Systems

Windows 7 Windows 10 Windows 8.1 Windows XP

Associated Operating Systems


Other File Types Related to XPI Files

Extension File Type Developer File Category File Type Description
.CFM Adobe Systems Incorporated Web Files ColdFusion Markup File
.CRT Mozilla Web Files Security Certificate
.JSM Mozilla Settings Files Firefox JavaScript Module
.VBD Microsoft Corporation Web Files Visual Basic ActiveX Document
.WEBM Google Video Files WebM Video File
.WEBLOC Apple Web Files Mac OS X Website Location
.509 Microsoft Corporation Web Files Internet Security Certificate
.SUN Sun Microsystems Raster Image Files Sun Raster Graphic File
.JP2 Joint Photographic Experts Group Raster Image Files JPEG 2000 Core Image File
.HTML Various Developers Web Files Hypertext Markup Language File

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