Pale Moon 19.0 released, download now

Pale Moon is a custom-built and optimized Firefox-based browser for Windows operating systems with current, high performance processors. It looks identical to the standard Firefox browser and supports Firefox extensions, themes and identities.


  • Highly optimized for modern 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
  • Stability: experience fewer browser crashes.
  • Support for SVG and Canvas, and downloadable fonts including WOFF
  • Support for HTML5 and WebGL (v4+)
  • Support for Firefox extensions (add-ons), themes and personas
  • Support for OOPP (Out-of-process plugin execution)
  • Able to use existing Firefox bookmarks and settings with this migration tool

This is a new major release with a lot of changes and improvements:

  • 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.

For details about each of these points, see the detailed changelog post on the forum.

Download: Pale Moon 19.0 | 15.2 MB (Freeware)
Download: Portable Pale Moon 19.0 | 17.2 MB
Download: Pale Moon 19.0 x64 | 18.4 MB
View: Homepage | Release Notes

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