Firefox Setup 42.0 beta

Firefox beta includes dozens of major features and improvements - by testing them early we'll be able to respond to your feedback for future versions of Firefox. Once you download Firefox, you're part of our beta program and will receive regular updates as more features launch.

Mozilla Firefox 15 beta is in the Web Browsers category of the Browsers section.


What's new in this version:

Version 42.0 b8 may include unspecified updates, enhancements, or bug fixes.