Download Pale Moon 33.9.0: Latest Features and Updates

Introduction to Pale Moon

Pale Moon is an open-source web browser built on the Goanna engine, designed for Windows, Linux, and Android platforms. Its primary focus is on delivering an efficient browsing experience that is both user-friendly and customizable. Enhance your internet experience with Pale Moon and make it truly your own!

Unique Features of Pale Moon

This browser is distinctively constructed from its proprietary code base, which has been forked from Firefox and Mozilla. Pale Moon integrates selected features and optimizations that significantly enhance speed, resource utilization, and overall stability. Where user experience is concerned, it offers full customization along with a growing selection of extensions and themes.

Key Features Include:

Enhanced performance optimized for modern processors.
Utilizes the Goanna layout engine for superior speed.
Robust security features, derived from the stable Mozilla codebase.
Non-profit and community-supported development model.
Flexible and fully customizable user interface.
Extensive support for themes, allowing creative freedom.
Lightweight theme options for quick personalization.
Faster page rendering and script execution.
Improved stability, leading to fewer browser crashes.
Compatibility with many existing Firefox extensions.
Access to a unique range of exclusive Pale Moon extensions.
Comprehensive support for HTML5 and CSS3 standards.
Numerous configuration options for tailored browsing.

New Additions and Enhancements

Support for the CSS4 revert keyword.
Implementation of the clip keyword for better overflow management.
Enhanced axis-shorthand parsing for overflow to resolve unscrollable areas.
Introduction of CSS color-mix functionality for specific color spaces.
Adoption of CSS @supports syntax for complex selectors.
Establishment of Cascade Layers @layer support in CSS.
Updated support for CSS clip-path geometry without a predefined clip path.
Addition of overflow-inline and overflow-block properties.
Implementation of the: autofill and: focus-visible CSS pseudo-classes.
Incorporation of the prefers-reduced-motion media query for accessibility.
Launch of a minimal variant of the visualViewport web API.

Notable Updates and Fixes

Alignment of -moz-user-select with the latest user-select CSS4 specifications.
Patching for -moz-read-only and -moz-read-write pseudo-classes.
Improved compliance with X-Content-Type-Options: nosniff specification.
Support enhancement for FFmpeg 7.0/libavcodec 61.
Resolved issues with CSS border-image sub-properties not updating.
Fixed problems regarding scrollbar-width handling.
Addressed pixel color depth misreporting in Linux environments.
Initialization improvements for fontconfig on Linux systems.
Multiple bugs fixed regarding video processing on PowerPC and assembly-supported architectures.
Enhanced memory safety for gradient color stops in CSS.
Refined handling of @import rules for CSS stylesheets.
Changes to TypedArray constructors according to ECMAScript standards.
Updated processing of Cache-Control HTTP headers for response consistency.
Addressed important security vulnerabilities (CVE-2025-10536 and CVE-2025-10533).

Further Insights and Considerations

The clip keyword hides overflow content and makes it unscrollable, which could lead to accessibility challenges if not managed correctly.
Web developers using the prefers-reduced-motion CSS media query can enhance usability for users with motion sensitivity, fostering an inclusive browsing environment.
The minimal visualViewport web API implementation assists webmasters in optimizing content for mobile users, particularly considering screen layout variables like notches.
Changes to TypedArray behavior now provide a more forgiving approach to array initialization, promoting better alignment with web standards.

Get Started with Pale Moon

Ready to explore Pale Moon? Download the latest version today:

Pale Moon (64-bit Installer) | Portable 64-bit | ~40.0 MB (Freeware)

Pale Moon (32-bit Installer) | Portable 32-bit

Explore more resources on the official Pale Moon Homepage, check out Add-ons, and find creative Themes and Extensions to customize your browsing experience further.

Source & Images