Download Mozilla Firefox for Windows, a free web browser. Firefox is created by a global not-for-profit dedicated to putting individuals in control online. Get Firefox for Windows today!

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

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 …

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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.

Sep 25, 2025 · Installation and updates Learn how to install your favorite Mozilla products and keep them updated. Update Firefox to the latest release Firefox automatically updates itself by default, but …

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 is also notable for its wealth of available extensions. The unique Multi-Account Containers extension, for instance, lets you sequester multiple logins to the same site on different tabs.

Download the browser that puts your privacy first — get Firefox for Windows, macOS, or Linux on desktop.

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.