

Version 27.9.4 was the final official release to support Windows Vista as well as the final unofficial release for Mac OS X 10.6 Snow Leopard. Version 26.5 was the final official release to support Windows XP.

Pale Moon has diverged from Firefox in a number of ways:

It also continues to support some types of add-ons and plugins that are no longer supported by Firefox, including NPAPI plugins such as Flash Player. Pale Moon retains the highly customizable user interface of the Firefox version 4–28 era. The main differences are the user interface, add-on support, and running in single- process mode. Pale Moon originated as a fork of Firefox, but has subsequently diverged. There are official releases for Microsoft Windows and Linux, as well as contributed builds for various platforms. Pale Moon is an open-source web browser with an emphasis on customizability its motto is "Your browser, Your way". Arabic (ar), Bulgarian (bg), Traditional Chinese (zh-TW), Simplified Chinese (zh-CN), Croatian (hr), Czech (cs), Danish (da), Dutch (nl), American English (en-US), British English (en-GB), Filipino (tl), Finnish (fi), French (fr), Galician (gl), Greek (el), Hungarian (hu), Indonesian (id), Italian (it), Icelandic (is), Japanese (ja), Korean (ko), Polish (pl), Brazilian Portuguese (pt-BR), European Portuguese (pt-PT), Romanian (ro), Russian (ru) Argentine Spanish (es-AR), Mexican Spanish (es-M), Serbian (sr), Castilian Spanish (es-ES), Slovak (sk), Slovenian (sl), Swedish (sv-SE), Thai (th), Turkish (tr), Ukrainian (uk)
