Mozilla Firefox

Open the Microsoft Store, search for 'Firefox', and click Install

Download the installer from mozilla.org/firefox and run it

Use your distribution's package manager (e.g. apt, dnf, pacman) or download from mozilla.org/firefox — package names and availability vary by distribution.

Download the .dmg from mozilla.org/firefox and drag Firefox to Applications

About Mozilla Firefox

Firefox is Mozilla's web browser, built on the open-source Gecko engine and distributed under the Mozilla Public License 2.0 — both the browser and its underlying engine are fully open source. It's available on Linux, Windows, and macOS (plus Android and iOS), and remains one of the most widely used browsers, with frequent update cycles (roughly every four weeks for stable releases).

Firefox differentiates itself with strong privacy defaults, including Enhanced Tracking Protection that blocks social-media trackers and cryptominers by default, and its funding model relies on a search-engine revenue share rather than user data collection.

System requirements

Mozilla publishes minimum requirements per platform. The common denominator is a 64-bit operating system: Windows 10 or later, macOS 10.15 Catalina or later, or a 64-bit Linux distribution with a modern desktop environment. At least 200 MB of disk space and 512 MB of RAM are recommended for smooth performance.

Installing Firefox

Installation differs by platform — see the install methods above for the most common paths. For a full, verified, step-by-step walkthrough on Windows 10 specifically, including what to expect during install and how to skip the first-run setup screens, see the linked tutorial below.