Pale Moon is an Open Source, Goanna-based web browser available for Microsoft Windows, Linux and Android, 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 its own, independently developed source that has been forked off from Firefox/Mozilla code, with carefully selected features and optimizations to improve the browsers speed, resource use, stability and user experience, while offering full customization and a growing collection of extensions and themes to make the browser truly your own.
- Optimized for modern processors
- Based on proprietary optimized layout engine (Goanna)
- Safe: forked from mature Mozilla code and regularly updated
- Secure: Additional security features and security-aware development
- Supported by our user community, and fully non-profit
- Familiar, efficient, fully customizable interface
- Support for full themes: total freedom over any elements design
- Support for easily-created lightweight themes (skins)
- Smooth and speedy page drawing and script processing
- Increased stability: experience fewer browser crashes
- Support for many Firefox extensions
- Support for a growing number of Pale Moon exclusive extensions
- Extensive and growing support for HTML5 and CSS3
- Many customization and configuration options
Pale Moon 29.3.0 changes/fixes:
- "Web Developer" is now called "Developer Tools" in the menus.
- Updated and aligned about:home, the QuickDial page and logopage styling.
- Re-organized the privacy category in the preferences window.
- Enabled brotli compression for http for sites that support it. See implementation notes.
- Implemented EventTarget as a constructor.
- Updated Windows 10 toolkit styling.
- Updated the port blacklist (removed 10080). See implementation notes.
- CSS: Implemented calc() and animation support for stroke-dashoffset.
- Added support for checking boolean preferences to chrome CSS style sheets, to support more advanced theming options.
- Added support for dynamic dark color capable themes in CSS.
- Updated ResizeObserver implementation to a more recent specification. See implementation notes.
- Removed a metric ton of Macintosh code.
- Removed obsolete system theme support from the layout engine.
- Fixed several crashes.
- Linux: blocked particularly old versions of Mesa/Nouveau drivers due to issues.
- Security issues addressed: CVE-2021-30547 and several other issues that don't have a CVE number.
- Unified XUL Platform Mozilla Security Patch Summary: 3 fixed, 3 DiD, 2 deferred (DiD), 12 not applicable.
- Brotli compression (introduced a few years back) has originally been restricted to https only in web browsers because there was some concern about interaction with middleware boxes with poor design trying to transparently recompress data not recognizing the new compression stream type and causing failures. The kind of processing done in those boxes (SDCH) has long since been deprecated. Since then, the segregation for Brotli between http and https has been maintained by Chrome and Firefox as a vessel to further promote https over http by artificially keeping http less efficient (denying the use of the more dense Brotli compression). Since there is no technical reason not to enable Brotli over http, we will accept (by way of Accept-encoding) Brotli over plain http from this version on, offering up to 20% less bandwidth use when servers also support it.
- We maintain a blacklist of ports that should not be addressed from a browser (primarily to prevent scripted abuse). Not too long ago we updated these ports with a number of additional (higher range) ones, including port 10080 (Amanda). Unfortunately there is too much overlap with other common services/devices that also use this (arbitrarily chosen) port, so we've removed this particular port again from our blacklist.
- The ResizeObserver implementation was changed to now support the updated specification for this API, including the experimental properties contentBoxSize and borderBoxSize which allows finer control to respond to size changes of elements. The old spec sizing property of contentRect remains supported for web compatibility.
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