.CER File Overview

File Extension:	CER
File Type Description:	Internet Security Certificate
File Type Developer:	Microsoft Corporation
Primary Associated Software:	Internet Explorer
Primary Software Developer:	Microsoft Corporation

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CER

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Home File Types Web Files CER

What is File Extension CER?

Primarily, a CER file extension is a type of Internet Security Certificate file developed for the Mozilla Firefox software program by Mozilla. User statistics infer that these CER files are popular with users from United States and most frequently found on the Windows 10 platform. Frequently these users are visiting our web site using Google Chrome.

Associated Developers and Software

	Adobe Reader by Adobe Systems Incorporated
	Mozilla Firefox by Mozilla
	Adobe Acrobat DC by Adobe Systems Incorporated
	Internet Explorer by Microsoft Corporation
	Apple Safari by Apple

Top CER User Languages

Top CER 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 CER Files

Extension	File Type Developer	File Category	File Type Description
.509	Microsoft Corporation	Web Files	Internet Security Certificate
.3GPA	Open Source	Audio Files	3GPP Multimedia File
.ONEBIN	Microsoft Corporation	Temporary Files	OneNote Data
.MSH	Martin Schweiger	3D Image Files	Orbiter 3D Mesh File
.WHT	Microsoft Corporation	Data Files	Microsoft NetMeeting White Board Document File
.MAK	Sublime HQ Pty Ltd	Developer Files	Makefile
.VXD	Microsoft Corporation	System Files	Windows Virtual Device Driver
.XPROJ	Microsoft Corporation	Text Files	Microsoft Visual Studio ASP.NET Project
.DAT	Unknown Developer	Game Files	Game Data
.PMA	David Harris	Compressed Files	Pegasus Mail Data Archive File