If you are a web developer you want to make sure that your designs are good on all browsers and operating systems. With Utilu Firefox Collection you can do it by downloading all versions of Firefox browsers on your system.
The collection starts with Mozilla Firefox 18.104.22.168 to the last stable version, but that’s not all. It also includes Firebug and Web Developer Tools. The package allow you to check your design quickly and easily against all older browsers.
It is worth mentioning that it can take up to 7GB of disk space if you install all versions on your system.