Download Firefox

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox Privacy Notice

How Will Mozilla Use My Email?

Mozilla doesn’t just value your email privacy and security – it’s part of our Manifesto: “Individuals’ security and privacy on the internet are fundamental and must not be treated as optional.” You can learn about our Data Privacy Principles here.

What we want you to know:

  • You don’t need to give us your email to download and use Firefox.
  • We asked for your email because our research shows that people who receive an introductory experience do more and better with Firefox.
  • You can expect emails designed to help you optimize Firefox to work best for you, learn more about privacy & security and find out how to make the best of your time on the web.
  • You can unsubscribe anytime, for any reason.
  • We will not share, sell or use your email for any other purposes.