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Download Pale Moon 27.5.1

Pale Moon 27.5.1

By Moonchild Productions  (Open Source)
User Rating

Pale Moon is a Firefox-based web browser for Microsoft Windows, Android and Linux (with other operating systems in development) that is focused on efficiency and ease of use. The application is Open Source and free to use. Pale Moon offers you a browsing experience in a browser completely built from its own source with carefully selected features and optimizations to maximize the browser's speed, stability and user experience, whilst maintaining compatibility with thousands of Firefox extensions.


  • Familiar, efficient, fully customizable interface with smooth and speedy page drawing and script processing.
  • Support for Pale Moon exclusive extensions and themes and extensive support for HTML5, CSS3 and WebGL.
  • Support for many Firefox extensions (add-ons) and themes. Pale Moon is able to import existing Firefox profiles with the migration tool.

System Requirements: Windows Vista/Windows 7/Windows 8/Server 2008 or later. A processor with SSE2 support. 256 MB of free RAM. At least 150 MB of free (uncompressed) disk space.

Title: Pale Moon 27.5.1
Filename: palemoon-27.5.1.win32.installer.exe
File size: 30.70MB (32,192,656 bytes)
Requirements: Windows (All Versions)
Languages: Multiple languages
License: Open Source
Date added: October 10, 2017
Author: Moonchild Productions
MD5 Checksum: 867217B141C2920C46B6D56C5DB89AE6

Changed the default Windows 10 styling when no accent color is aplied to black-on-white.
Changed the theme styling on Windows 10 when the system window frame is used (menu bar enabled) to use the window manager background directly, preventing visual lag updating the window color when it changes.
Updated user agent overrides for DropBox, YouTube and Yahoo to work around user agent sniffing issues.
Fixed a crash in the media subsystem.
Fixed a regression where video playback hardware acceleration was disabled incorrectly on some systems.
Security fixes:
Updated libhyphen to the latest upstream code to fix a security issue.
Updated NSPR to 4.16-RTM with a patch to un-bust building on win64.
Updated NSS to 3.32.1-RTM.
Worked around some more issues with Mac fonts (CVE-2017-7825).
Fixed a potential rooting hazard in NPAPI plugin code.
Fixed a potential reference issue in JavaScript arrays.

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