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 a number of years ago, with carefully selected
features and optimizations to improve the browser's stability and user
experience, while offering full customization and a growing collection
of extensions and themes to make the browser truly your own.

Main features:

 o Support for many Firefox extensions
 o Support for a growing number of Pale Moon exclusive extensions
 o Secure: Additional security features and security-aware development
 o Extensive and growing support for HTML5 and CSS3

WWW: https://www.palemoon.org/