.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 Brazil 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
.MSPX	Microsoft Corporation	Web Files	Microsoft ASP.NET Web Page
.CFM	Adobe Systems Incorporated	Web Files	ColdFusion Markup File
.DBM	Adobe Systems Incorporated	Web Files	ColdFusion Server File
.MAB	Mozilla	Uncommon Files	Mozilla Address Book
.MSF	Mozilla	Uncommon Files	Mail Summary File
.JPX	Embarcadero Technologies	Developer Files	JBuilder Project
.JSB	Freedom Scientific	Developer Files	JAWS Script Binary File
.IIM	Ipswitch, Inc.	Executable Files	iMacro Macro File
.19	IBM	Data Files	IBM Voice Type Languages Scripts Data File
.SHTM	Opera Software	Video Files	HTML Server Side Include File