.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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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
.SHT	The Document Foundation	Web Files	HTML File With Server Side Includes
.SPL	Microsoft Corporation	System Files	Windows Print Spool File
.HTM	Various Developers	Web Files	Hypertext Markup Language File
.AXD	Microsoft Corporation	Web Files	ASP.NET Web Handler File
.VX	Opera Software	Web Files	Opera Browser Data
.MHTM	Microsoft Corporation	Web Files	Mime HTML (MHTML) File
.VBD	Microsoft Corporation	Web Files	Visual Basic ActiveX Document
.ASPX	Microsoft Corporation	Web Files	Active Server Page Extended ASP.NET Script
.MSPX	Microsoft Corporation	Web Files	Microsoft ASP.NET Web Page
.PHTM	The Catalina Group	Web Files	PHP-Based Web Page