.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 China and most frequently found on the Windows 10 platform. Frequently these users are visiting our web site using Google Chrome.

Associated Developers and Software

	Mozilla Firefox by Mozilla
	Internet Explorer by Microsoft Corporation
	Adobe Acrobat DC by Adobe Systems Incorporated
	Adobe Reader by Adobe Systems Incorporated
	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
.SRT	SourceForge	Video Files	SubRip Subtitle File
.BIO	IBM	System Files	BIOS File
.BI	Microsoft Corporation	Data Files	Binary File
.VRX	Microsoft Corporation	Data Files	Report Data File
.WDB	Microsoft Corporation	Database Files	Microsoft Works Database
.VBP	Microsoft Corporation	Developer Files	Visual Basic Project File
.ODCTABLEFILE	Microsoft Corporation	Data Files	Microsoft Office File
.HXS	Microsoft Corporation	Web Files	Help 2 Compiled Help File
.RGB	Silicon Graphics, Inc.	Raster Image Files	RGB Bitmap