Pale Moon is a fast and stable Open Source alternative to the standard Firefox browser.It is essentially an optimized version of Mozilla's browser that effectively retains all the stability and reliability of Firefox while providing a familiar, efficient, and fully customizable interface. It supports most of the Firefox add-ons and themes that you have come to enjoy as well as many that are native to Pale Moon itself.The developers decided that several features needed to be eliminated in order to keep the browser running fast, such as: Accessibility features, and parental controls. Also, it is important to point out that this browser doesn't contain Adobe Flash Player, which will be needed when viewing some websites, this fact will require you to install it separately.Pale Moon Features: Optimized for modern processors Safe: forked from Firefox and regularly updated. Supported by a friendly, active community of users Support for full themes: total freedom of any element's design Support for easily-created lightweight themes (skins) Smooth and speedy page drawing and script processing Increased stability: experience fewer browser crashes Support for many Firefox extensions (add-ons) Support for a growing number of Pale Moon exclusive extensions Extensive and growing support for HTML5 and CSS3 Many customization and configuration options Pale Moon is able to import existing Firefox profiles with the migration tool