Pale Moon is an Open Source, Firefox-based web browser for Microsoft Windows, focusing on efficiency and ease of use. Make sure to get the most out of your browser!

Pale Moon offers you a browsing experience in a browser completely built from source with carefully selected features and optimizations to maximize the browser's speed*, stability and user experience, while maintaining compatibility with the thousands of Firefox extensions you have come to love and rely on.

This browser, even though close to Firefox in the way it works, offers a different set of features than its sibling. A few carefully selected features have been disabled that are not in high demand, and that do not interfere with the way web pages are displayed or function; all to maximize the efficiency of the browser. Please see the page with technical details to learn exactly what the browser supports, and what it doesn't support. For example, if you need accessibility features or parental controls, then please visit the Firefox homepage and get the official, non-optimized version of the browser.


Key Features:

Version 24.4.0

Fixes/changes:

• By popular request: the new page title (when using the Pale Moon App button) will now follow the operating system default alignment (in most cases), meaning it will align left on Windows Vista and Windows 7 by default instead of center. If you want to hide the title or align it differently, please see the FAQ section on the forum.
• Updated status bar code to the latest "non-australis" version and license change to MPL 2.0 to bring it in line with the rest of the browser code, making it an integral part of the source tree to streamline building (also for 3rd parties).
  
• Changed the way Pale Moon handles file and protocol associations. This will prevent interoperability issues if you have both Firefox and Pale Moon installed on the same system. A side effect is that Pale Moon will ask you (once) to make it the default browser again when you install this update, because of the new associations to be made.
  
• Changed the search default to DuckDuckGo.
• Added DuckDuckGo logo to about:home.
• Changed some things in the build system, back-end code and build configuration to improve overall performance of the browser.
  
• Switched to the use of a more compact browser filesystem layout, improving overall start-up speed.
  
• Precompiled script cache in the application, improving overall start-up speed at the expense of some disk space.
  
• Added MPS detection for non-windows operating systems (NSPR fallback method) instead of always "1".