PaleMoon 苍月浏览器是基于Mozilla Firefox 火狐浏览器编译优化而成，它在国外相当热门，主要是为提升Firefox速度而设计。其添加多种firefox扩展，以使其更美观，功能更多，也更适用于新手。它的优化提高了其速度和效率，特别是有关数学和逻辑运算环节，速度很占优，三角函数计算快32%，MD5哈希测试快31%。使用Firefox的扩展、插件等资源，都可使用。
知名火狐修改增强辅助版—苍月浏览器Pale Moon 现已小幅更新至v26.5.0 正式版！新版主要更新库组件及修复大量BUG，有兴趣的具体见详细日志；PaleMoon 26这是个重大更新版本，新版苍月早已经拥有了64位版本，使用了自家浏览器渲染引擎Goanna，并在用户界面、安全等方面进行了诸多调整。
After about 8 months of development, we now have a new milestone release with literally too many changes to list even concisely. These release notes will therefore only highlight the most important parts of this release.
In this release we’ve done a full upgrade of our back-end platform, meaning many things work different “under the hood” and you may run into a number of extension compatibility issues as a result.
New and updated features:
Support for DirectX 11 and Direct2d 1.1 on Windows. This will bring Pale Moon more in line with the capabilities for current-day operating systems and graphics hardware.
Update of the Goanna engine to 3.0 – with many changes to layout and rendering for the modern web.
Pale Moon now fully supports HTTP/2.
Ruby Annotations are now an integral part of the HTML parser, controllable with CSS.
Media Source Extensions have been implemented to solve many video playback issues.
This can be enabled/disabled and configured in Options. It’s recommended at this time to not enable MSE for WebM since there are a few issues with it on services like YouTube (e.g. losing audio when looping/skipping).
Support for reading and play