.ADR File Overview

File Extension:	ADR
File Type Description:	Opera Bookmarks File
File Type Developer:	Opera Software
Primary Associated Software:	Opera
Primary Software Developer:	Opera Software

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ADR

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Home File Types Web Files ADR

What is File Extension ADR?

ADR files are a type of Opera Bookmarks File developed for Opera by Opera Software. Our internal web tracking data indicates that Windows 10 operating system users, and those living in United States, are the most likely to use Opera Bookmarks File files. Google Chrome is the predominant internet browser used by this population.

Associated Developers and Software

Opera by Opera Software

Top ADR User Languages

Top ADR 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 ADR Files

Extension	File Type Developer	File Category	File Type Description
.CMS	Opera Software	Web Files	Content Management System Web Page File
.XHTML	Opera Software	Web Files	Extensible Hypertext Markup Language Document
.BOK	Pearson	Data Files	TestGen Testbank File
.MBS	Opera Software	Uncommon Files	Opera Mailbox File
.BML	Various Developers	Web Files	Bean Markup Language File
.QF	Nokia	Settings Files	Nokia (Ovi) Maps Version Data
.DO	Unknown Developer	Web Files	Java Servlet
.SHTM	Opera Software	Video Files	HTML Server Side Include File
.MSPX	Microsoft Corporation	Web Files	Microsoft ASP.NET Web Page
.HTML	Various Developers	Web Files	Hypertext Markup Language File