Pale Moon 20.0.1

Custom-built and optimized Firefox browsers for Windows.

Why settle for a basic build of your Firefox browser on Windows Operating Systems when you can have one that performs 25% faster? Mozilla does not provide optimized browser packages for Windows, while many Linux ("from scratch") users get the advantage of a browser built specifically for their system. That needs to change! So, here is the Pale Moon project: Custom-built and optimized Firefox browsers for Windows Operating Systems. Make sure to get the most speed out of your browser.

Of course, getting a faster browser is not just about optimizing the compilation process (building a program from its source code), but also about carefully choosing features and how to choose the best setup. This means that this browser, however extremely close to Firefox, does not have all the functions that Firefox has. 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 speed and efficiency of the browser. Please see the page with technical details to learn exactly what the browser supports, and what it doesn't support. In short, if you need accessibility features or parental controls, then please visit the firefox homepage and get the official, non-optimized build.

Features:

• Highly optimized for current processors
• 100% Firefox sourced: As safe as the browser that has seen years of development.
• Uses slightly less memory because of disabled redundant and optional code
• Significant speed increases for page drawing and script processing
• Support for SVG and Canvas
• Support for Firefox extensions, themes and personas

What's New:

• Update of the underlying Firefox (gecko) code to v19. This has a number of consequences:
• Add-ons and themes may need to be updated since the UI code has changed.
• HTML5-implementation is more complete
• A number of CSS statements have their prefix removed (-moz*)
• Javascript now uses the IonMonkey engine by default, which is a new (faster) engine
• Improvements to the layout and rendering engines
• If you are using a language pack, you need to update it to the new version
• Update of the browser style. Main browser controls and the padlock look slightly different.
• Several Pale Moon specific improvements to the rendering engine, noticeable in general use and certain benchmarks, to prevent browser stalls or high CPU usage on certain pages.
• The builds no longer use PGO (Profile Guided Optimization) but are globally speed-optimized.