Get Firefox for Windows, Mac or Linux. Firefox is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy.

Firefox 57, which was released in November 2017, was the first version to contain enhancements from Quantum, and has thus been named Firefox Quantum. A Mozilla executive stated that Quantum was …

Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

Download Mozilla Firefox for Windows, a free Web browser. Firefox is created by a global non-profit dedicated to putting individuals in control online. Get Firefox for Windows today!

We’re getting things readyLoading your experience… This won’t take long.

Firefox: Get the gold standard for browsing with speed, privacy and control. Thunderbird: Go chaos-free with one app for all your emails, calendars and contacts.

Nov 24, 2025 · Firefox and Safari are the only ones that still use non-Chromium engines, with the former being the sole, top-to-bottom independent competitor.

Sep 22, 2025 · How to install Firefox on Windows This article describes how to download and install Firefox on Windows.

Products Firefox is just the beginning. Mozilla’s family of products are all designed to keep you safer and smarter online.

Get a sneak peek at the latest Firefox browser features before they’re released. Test your sites against soon-to-be-released Firefox browser features with powerful, flexible DevTools that are on by default.