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.

Uses the IP-API service instead of Google's for geolocation.

Defaults to DuckDuckGo as the search engine instead of Google or Yahoo!.

Defaults to a customizable start page in cooperation with.

These include retention of 'Complete Themes', themes which apply to the entire UI of the browser rather than affecting only a few elements, support for which was removed in Firefox. Supports add-ons exclusive to Pale Moon, including dozens of themes.Continues add-on support for XUL, XPCOM, and NPAPI plugins, all of which are no longer supported in Firefox.Uses the pre-Australis Firefox user interface.Replaces the Gecko browser engine with the Goanna fork.Always runs in single-process mode, whereas Firefox became a multi-process program.For example, if you need accessibility features or parental controls, then please visit the Firefox homepage and get the official, non-optimized version of the browser.Pale Moon has diverged from Firefox in a number of ways: Please see the page with technical details to learn exactly what the browser supports, and what it doesn't support. A few carefully selected features have been disabled that are not in high demand, and that do not interfere with the way web pages are displayed or function all to maximize the efficiency of the browser.

This browser, even though close to Firefox in the way it works, offers a different set of features than its sibling. Pale Moon offers you a browsing experience in a browser completely built from source with carefully selected features and optimizations to maximize the browser's speed*, stability and user experience, while maintaining compatibility with the thousands of Firefox extensions you have come to love and rely on. Make sure to get the most out of your browser! Pale Moon is an Open Source, Firefox-based web browser for Microsoft Windows, focusing on efficiency and ease of use.

Pale moon browser windows xp