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Utilu Mozilla Firefox Collection

Contains numerous standalone versions of Firefox plus Firebug and Web Developer

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Utilu Mozilla Firefox Collection screenshotUtilu Mozilla Firefox Collection is a utility designed by Utilu that contains numerous versions of the free web browser Mozilla Firefox, which are stand-alone versions so they can be used in the same time. This is beneficial for web developers.

In Utilu Mozilla Firefox Collection you can promptly see how your websites look when rendered using various versions of the Gecko render engine. You can designate the filenames or locations (URLs) to open in numerous installed versions of Mozilla Firefox. Also the versions to open can be chosen.

Filenames or URLs that contain spaces must be confined in quotes ("). more filenames or URLs may be used by split them by spaces. This will result in numerous tabs being opened.

The version number of every contained version of Firefox can be discovered in the window title.

This program also contains the Web Developer and Firebug add-ons for all contained versions of Mozilla Firefox. These add-ons offer a variety of features which make troubleshooting websites much simpler.


  • Provides a collection containing numerous versions of the Mozilla Firefox browser.
  • Lets you run multiple stand-alone versions at the same time.


  • Provides only partial support for several formats.
  • Doesn't include versions older than 2.0.
Name Utilu Mozilla Firefox Collection
Developer | see all products from this developer
Product Homepage Utilu Mozilla Firefox Collection
License Free (Freeware)
Last Week Downloads 41
All Time Downloads 13,896
Filename #download
Filesize 699MB
OS Support Windows All
Category Internet


Old Versions

Download the free Utilu Mozilla Firefox Collection