.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 United States 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?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac
	iOS
	Android
	Linux

Other File Types Related to XPI Files

Extension	File Type Developer	File Category	File Type Description
.ASPX	Microsoft Corporation	Web Files	Active Server Page Extended ASP.NET Script
.MJPEG	Various Developers	Video Files	Motion JPEG Video File
.19	IBM	Data Files	IBM Voice Type Languages Scripts Data File
.ADP	Microsoft Corporation	Database Files	Access Project Extension
.MSPX	Microsoft Corporation	Web Files	Microsoft ASP.NET Web Page
.HTMLS	Open Source	Web Files	HTML With Server-Side Include
.SUN	Sun Microsystems	Raster Image Files	Sun Raster Graphic File
.4	IBM	Data Files	IBM Voice Type Languages Scripts Data File
.CPC	Cartesian Products, Inc.	Raster Image Files	CPC Compressed Image File
.RMT	The Catalina Group	System Files	Router Firmware File