.LOCK File Overview

File Extension:	LOCK
File Type Description:	Lock File
File Type Developer:	Mozilla
Primary Associated Software:	Mozilla Firefox
Primary Software Developer:	Mozilla

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Home File Types Uncommon Files LOCK

What is File Extension LOCK?

Mozilla created the Lock File (LOCK) file for the Mozilla Firefox software series. Commonly, Lock File files are found on user computers from China, and on PCs running the Windows 10 operating system. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.

Associated Developers and Software

	Mozilla Firefox by Mozilla
	Minecraft by Mojang
	Microsoft OneDrive by Microsoft Corporation
	Apache Web Server by Apache HTTP Project Management Committee

Top LOCK User Languages

Top LOCK 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 LOCK Files

Extension	File Type Developer	File Category	File Type Description
.ABM	Unknown Developer	Audio Files	Music Album
.LASSO	LassoSoft	Web Files	Lasso Database-Driven Web Page
.DO	Unknown Developer	Web Files	Java Servlet
.HTM	Various Developers	Web Files	Hypertext Markup Language File
.QRM	Armangil Software	Web Files	Qworum Message File
.PSP	Corel Corporation	Raster Image Files	PaintShop Pro Image
.PLUGIN	Adobe Systems Incorporated	Plugin Files	Adobe Photoshop Plugin
.MSPX	Microsoft Corporation	Web Files	Microsoft ASP.NET Web Page
.ASHX	Microsoft Corporation	Web Files	ASP.NET Web Handler File
.EML	Microsoft Corporation	Web Files	E-Mail Message