Pale Moon

Pale Moon 28.7.1

Custom-built and optimized Firefox browsers for Windows.

Freeware
Windows
38.7 MB
43,552
4.3 68 votes

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:

This is a major development update involving a partial JavaScript engine overhaul and improvement, implementing several website-impacting changes. It should be noted that these changes follow some revisions of specifications (also adopted by mainstream browsers) that are not necessarily backwards compatible for web content as some scripting behavior has changed. If you are targeting Pale Moon specifically (e.g. through ua sniffing) please check and verify the behavior is still as expected.

Changes/fixes:

  • Landed a large JavaScript parser tune-up, which as a targeted goal brings our ES6 stringification fully in line with the ES2018 revision for classes, and implements rest/spread parameters for object literals. (Cheers to Luke!)
  • Fixed a crash with the tuned-up parser code when certain error messages were triggered.
  • Aligned browser behavior with mainstream regarding inner window behavior when domain is manipulated.
  • Improved performance dealing with frame properties.
  • Improved performance for handling html5 strings.
  • Improved performance of image content loading.
  • Fixed potential type confusion in array joins.
  • Fixed an issue on some pages causing high CPU usage when wrongly specifying plugin content.
  • Fixed an issue with the add-ons manager "discover" pane if no network connection is present.
  • Fixed an issue with bookmark/history search results offering context menu options that would be invalid without a selection.
  • Fixed the devtools JSON viewer and enabled it by default.
  • Fixed searching from about:home not working for search plugins using the POST method.
  • Fixed an issue with the checkboxes for location bar preferences.
  • Fixed SVG alignment issues if SVG-containing elements fall on odd pixel sizes, causing blurry display of especially small SVGs like icons/glyphs.
  • SVGs will now always be pixel-snapped to provide expected crisp display.
  • Fixed precompilation of Sync client modules when packaging. This also removes the redundant services.sync.enabled pref.
  • Added support for matroska containers and h264-based webm video formats.
  • Added support for AAC audio in matroska and webm video formats.
  • Added support for spaces in the Mac package and application name.
  • Added an exception to the unique file origin policy for font types.
  • Added native file picker support for xdg on Linux.
  • Updated the default bookmark icons.
  • Updated the SQLite lib to 3.29.0.
  • Removed e10s information from about:troubleshooting.
  • Removed hotfix leftovers.
  • Removed the WebIDE developer tool.
  • Removed conditional build-time disabling of the Pale Moon status bar code.
  • Removed "Delete this page" and "Forget about this site" links from live bookmarks (since they make no sense on feeds).
  • Removed the Financial Times' polyfill user-agent override since they updated their detection to work with Pale Moon.

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