Pale Moon (64bit)25.5.0

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.

Pale Moon will continue to provide appropriately sized grouped navigation buttons, bookmark toolbars enabled by default, tabs next to the default page content (easy to switch) and at least no functional status bar and more freedom of customization, to name a few things.

Pale Moon is and will always be open source and completely free to download and use!

Key Features:
  • Optimized for modern processors
  • Based on the Unified XUL Platform (UXP) containing our own optimized layout and rendering engine (Goanna)
  • Safe: forked from mature Mozilla code and regularly updated with the latest security patches
  • Secure: Additional security features and security-aware development
  • Supported by our user community, and fully non-profit
  • Privacy-aware: zero ads; no telemetry, spyware or data gathering
  • Familiar, efficient, fully customizable interface
  • Support for full themes: total freedom for any element's design
  • Support for easily-created lightweight themes (skins)
  • Smooth and speedy page drawing and script processing
  • Superior gradients and fonts
  • Will continue to support NPAPI plugins like Silverlight, Flash and Java
  • Support for a growing number of Pale Moon exclusive extensions
  • Extensive and growing support for existing web standards

What's New

Version 25.5.0

Fixes/changes:

  • Logjam fix: Refuse DHE keys with less than 1024 key bits
  • Search plugin updates to re-enable Google suggestions and reduce tracking (Squarefractal)
  • Allow plugin-specific (.dll based) OOPP overrides also for npswf. This will not be used for the "master switch" for OOPP and Flash will still be in the plugin container, unless a specific dom.ipc.plugins.enabled.npswf*.dll boolean is set to override.
  • Fixed a crash during WebGL Conformance Tests for undefined indices (Toady)
  • HSTS preload list updates (Squarefractal)
  • Status bar locale addition: cs
  • Implemented a fix for the toolkit update service so that the same version as the current application will not be offered as a valid update (Tobin)
  • Reorganized the AppMenu (give equal ease for windowed and tabbed browsing, deprioritize Sync)
  • Disabled the Sync promo box in doorhangers.
  • Updated libpng to version 1.5.22 
  • Fixed support for builds using newer freetype on Linux. (Axiomatic)
  • Fixed --with-system-pixman builds. (Isaac Dunham)
  • Updated SQLite to version 3.8.10.1
  • Changed the after-upgrade page loaded to the release notes instead of the home page.
  • (and hoping people actually do take a moment to read them, preventing unnecessary support requests)
  • Fixed navigator.geolocation - should never be null, to properly adhere to the specification (Travis)
  • Moved paintlock event delay to greprefs, and adjusted it for 2015's heavier sites
  • Fixed the about dialog scripting for pre-release builds (includes build date now as-intended and no longer errors the script)
  • Reorganized how pushed floats are handled in layout flow
  • Implemented a change to run the updater from the install directory instead of copying it.
  • Fixed transparency of the Pale Moon document icon for 256x256
  • Updated padlock code:
  • - Added mixed-mode shading, and reorganized shading pref values more logically
  • (0=off, 1=secure only, 2=secure+mixed, 3=all)
  • - Cleaned up CSS
  • - Cleaned up padlock logic a little
  • Hard-coded internal UA sniffing values for the extension legacy of devtools
  • Updated NSPR to 4.10.8
  • Updated the NSS security lib to 3.19-RTM + re-worked Pale Moon changes
  • Bumped the built-in site-specific UA compat mode overrides to v38
  • Fixed a compressed-cache crash due to losing our cache entry while finishing up compression.
  • Updated and patched libcubeb, the main media sound library, to fix a number of audio issues (e.g. when switching output device) and audio-related crashes
  • Added the option to load modules into a named scope (see issue #88)
  • Removed quick access keys for buttons on the updater window (since it may pop up unannounced when people are typing, causing them to make unintended choices)
  • Updated jemalloc and mozjemalloc memory allocator libraries to improve performance
  • Removed implicit access to a whole range of internally-used interfaces and classes that page content has no business calling anyway
  • Added a preference for always preferring a certain dictionary language.

Security fixes:

  • Fixes for miscellaneous memory safety hazards (relevant and applicable fixes from CVE-2015-2708 and CVE-2015-2709)
  • DiD (defense-in-depth) fix to prevent potential overflows in CSS restyling
  • Fix for updater hijacking (CVE-2015-2720)
  • Fix to prevent potential disclosure of sensitive information in Android logs (CVE-2015-2714)
  • Fix for a buffer overflow in the XML parser (CVE-2015-2716)
  • Fix for a potentially exploitable crash in DNS handling

Program available in other languages

User Reviews

Security Levels

To avoid any potential harm to your device and ensure the security of your data and privacy, our team checks every time a new installation file is uploaded to our servers or linked to a remote server and periodically reviews the file to confirm or update its status. Based on this checking, we set the following security levels for any downloadable files.

Clean

It is highly likely that this software program is clean.

We scanned files and URLs associated with this software program in more than 60 of the world's leading antivirus services; no possible threats were found. And there is no third-party softwarebundled.

Warning

This program is advertising supported and may offer to install third-party programs that are not required. These may include a toolbar, changing your homepage, default search engine, or installing other party programs. These could be false positives, and our users are advised to be careful when installing and using this software.

Disabled

This software is no longer available for download. It is highly likely that this software program is malicious or has security issues or other reasons.

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