If you're a web developer and want to make sure your designs look great on every operating system and browser, here's an excellent option: Download every version of Firefox from 2.0.0.20 to the latest with Utilu Firefox Collection.
What's inside the collection?
The collection starts with Mozilla Firefox 2.0.0.20 and goes up to the latest stable version. It also includes Firebug and Web Developer, with several builds that work up to the latest version. Firebug is a plugin for editing, debugging, and monitoring CSS, HTML, and JavaScript in real time. Web Developer adds various web development tools to the browser.
Who is it for?
Utilu Mozilla Firefox Collection is aimed at web developers to ensure their designs look good across all operating systems and browsers. This package lets you quickly and easily check your design against older browsers, and find and fix any issues.
Installation and warnings
Installing Utilu Mozilla Firefox Collection lets you select any version of Firefox, Firebug, and Web Developer you want. By default, all versions are installed. Note that the package doesn't include every version, but the latest stable one. For example, if you want Firefox 2.0, it will only install 2.0.0.20, the final stable release of the 2.0 line. During installation you can configure the options, but be careful how many versions you install because you could slow down your computer.
It's worth noting that a full installation will consume several GB of disk space. Utilu Mozilla Firefox Collection is the best choice for web developers. And if you feel nostalgic and want older versions going back to 1.0, you can always download from the Mozilla Firefox releases FTP. Developed by Utilu, you can download Utilu Mozilla Firefox Collection for free on Windows.
Official website: Utilu Firefox Collection