Varieties of 3B2 Files

Chief 3B2 Description

.3B2

File Name:	.3b2
Category:	Firefox Extension Backup Extension

A 3B2 file is a backup extension related to the Firefox web browser.

Company:	Mozilla
Function:	Data Files
Key:	HKEY_CLASSES_ROOT\.3b2

Software Programs That Open The Firefox Extension Backup Extension:

Mozilla Firefox by Mozilla

Windows

	Mac
	iOS

Android

Linux

Solaris

illumos

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Sources of 3B2 Problems

Common 3B2 Opening Problems

Missing Mozilla Firefox

If you attempt to load your 3B2 file, you experience a message such as "Can't Open 3B2 Files". Generally, this is experienced in %%os%% because Mozilla Firefox isn't installed on your PC. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.

Tip: When you have another program installed that you know will open your 3B2, you can select it from the other programs listed (see "Show Apps").

Incorrect Mozilla Firefox Version

In other instances, your Firefox Extension Backup Extension file version may not be supported by your version of Mozilla Firefox. Download the latest Mozilla Firefox version from the Mozilla website to ensure you have the correct one installed. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Investigate your 3B2 file by right-clicking and selecting "Properties" to find clues on what version you need.

Summary: Not having the right Mozilla Firefox version on your computer can cause problems opening 3B2 files.

More Causes of Problems Opening 3B2s

Even with the correct version of Mozilla Firefox installed, you can still experience difficulties opening 3B2s. Other 3B2 opening errors can be created by other system problems inside of %%os%%. Other contributing causes:

• Invalid 3B2 file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Mistaken removal of the Windows registry 3B2 description
• Incomplete or bad installation of a software application associated with the 3B2 format
• Your 3B2 can't be loaded properly (file corruption)
• Your 3B2 has adversely impacted by malware
• 3B2-related hardware has device drivers that obsolete
• Your PC doesn’t have enough available resources to open the Firefox Extension Backup Extension file