Mozilla Firefox
Free, open-source web browser from the non-profit Mozilla, with built-in tracking protection.
Last verified: October 2, 2026
Official links
Links go directly to the developer, publisher or authorized store. Welcome Free Tools does not host any files. Official domain: firefox.com
Overview
Firefox is a free and open-source web browser developed by Mozilla. It is available for Windows, macOS, Linux, Android and iOS, and its official home is now firefox.com.
Firefox focuses on privacy and user control. Enhanced Tracking Protection blocks many known trackers by default, private browsing windows do not keep your history, and you can adjust privacy settings for each website. A large library of add-ons, available from Mozilla’s official add-ons site, lets you change how the browser looks and works. With a free Mozilla account you can sync bookmarks, passwords, history and open tabs between your devices.
Firefox is a good fit for people who want an alternative to Chromium-based browsers or who care about limiting tracking while they browse. Install it from firefox.com on desktop, or from Google Play and the App Store on mobile.
Features
- Enhanced Tracking Protection enabled by default
- Private browsing windows
- Large library of add-ons from Mozilla's official site
- Sync of bookmarks, passwords and tabs with a free account
- Available on desktop and mobile
Questions and answers
What is Mozilla Firefox?
Free, open-source web browser from the non-profit Mozilla, with built-in tracking protection. It is developed by Mozilla.
Is Mozilla Firefox free?
Mozilla Firefox is listed as: Free & Open Source. Whether optional purchases exist has not been verified yet. Pricing can change, so confirm on the official source.
Is Mozilla Firefox available on Android?
Yes, Android is a listed platform. Get it from the official source linked on this page.
Does Mozilla Firefox have a Windows version?
Yes, Windows is a listed platform.
Where is the official Mozilla Firefox website?
The official website is https://www.firefox.com/ (official source verified on October 2, 2026).
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