Firefox fights for you on Windows.

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Your system may not meet the requirements for Firefox, but you can try one of these versions:

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2x Faster

Firefox moves fast and treats your data with care — no ad tracking and no slowdown.

Common sense privacy

Live your life, Firefox isn’t watching. Choose what to share and when to share it.

Seamless setup

Easy migration of preferences and bookmarks when you download Firefox for Windows.

Advanced install options & other platforms

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Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Update your browser to fast, safe and secure Firefox.

One of the most important things you can do to have a safe, fast and secure online browsing experience is to make sure your browser is up to date. Update your browser like you would update your apps. No matter which browser you use, make sure you’re using the latest version.

Stay safe, browse safe

Up-to-date browsers protect you from viruses, security breaches and hacks. Older versions of browsers may be vulnerable to attacks and security holes. Firefox engineers have been known to ship a security update within a day of learning of a vulnerability.

The fastest Firefox yet

We work tirelessly to make sure Firefox is the fastest it can be, while making sure it doesn’t hog your memory or system resources. With each version we make improvements to the code that makes Firefox quick and nimble as you browse.

The best privacy

We are passionate about user privacy. With each new release we give you more ways to control who sees and accesses your personal browsing data. Tracking protection, private browsing and powerful privacy extensions all work together to make sure your private browsing information stays yours.

New features

Whether it’s enabling powerful new Mixed Reality features, improving accessibility or testing extensions that enrich your life, new browser releases always have something new and innovative for you to enjoy. Don’t miss out by lagging behind on an older version.

Why Firefox?

Firefox is independent and a part of the not-for-profit Mozilla, which fights for your online rights, keeps corporate powers in check and makes the internet accessible to everyone, everywhere. We believe the internet is for people, not profit. Unlike other companies, we don’t sell access to your data. You’re in control over who sees your search and browsing history. All that and exceptional performance too.

How do I update?

Most major browsers update automatically, which means that when a new version is available, your system will download and install it for you. So that’s one less thing you have to worry about keeping on top of. First find out which version of your browser you’re on. Then, if auto update is switched off, here’s how to manually update Firefox, Edge, Chrome, Opera or Safari.

Update Firefox to the latest release

By default, Firefox updates automatically. You can always check for updates at any time, in which case an update is downloaded but not installed until you restart Firefox.

Update Firefox

1. Click the menu button , click Help and select About Firefox . On the menu bar click the Firefox menu and select About Firefox .
2. The About Mozilla FirefoxAbout Firefox window opens. Firefox will check for updates and download them automatically.
3. When the download is complete, click Restart to update Firefox .

• If you are on a Mac computer with Apple Silicon and update from an older version to Firefox 84 or higher, you will need to fully exit and restart Firefox after the update (as explained here).

Stay safe: Download only from the official Mozilla links above to avoid malware and other online threats.

Update settings can be changed in Firefox Options Preferences Settings Preferences . In the Menu bar at the top of the screen, click Firefox and select Preferences . Click the menu button and select Options . Preferences . Settings . In the General panel, go to the Firefox Updates section.

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Обновление Firefox до последней версии

По умолчанию Firefox обновляется автоматически. Вы можете всегда произвести обновление вручную, и в этом случае обновление загружается, но не устанавливается, пока вы не перезапустите Firefox.

Обновление Firefox

1. Щёлкните по кнопке меню , щёлкните по кнопке Справка и выберите О Firefox . В панели меню щёлкните по меню Firefox и выберите О Firefox .
2. Откроется окно О Mozilla FirefoxО Firefox . Firefox проверит наличие обновлений и загрузит их автоматически.
3. Когда обновления будут загружены, щёлкните по кнопке Перезапустить Firefox для обновления .

• Если вы используете компьютер Mac с Apple Silicon и производите обновление со старой версии на Firefox 84 или выше, вам может потребоваться полностью выйти и перезапустить Firefox после обновления (как это объясняется здесь).

Обеспечьте свою безопасность: Загружайте Firefox только с указанных выше официальных сайтов Mozilla, чтобы избежать столкновения с вредоносным ПО и другими интернет-угрозами.

Настройки обновления можно изменить в Настройки Настройки Настройки Настройки в Firefox. На Панели меню в верхней части экрана щёлкните Firefox и выберите Настройки . Нажмите на кнопку меню и выберите Настройки . Настройки . Настройки . На панели Основные прокрутите вниз до раздела Обновления Firefox.

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Install and update

How to install Firefox and keep it up to date

Update Firefox to the latest release

Firefox automatically updates itself by default but you can always do a manual update. Learn how to update Firefox on Windows, Mac or Linux.

How to download and install Firefox on Windows

This article describes how to download and install Firefox on Windows.

Windows 10 warns me to use a «Microsoft-verified» app

Windows 10 may interrupt your Firefox install with a warning about «Microsoft-verified apps». Firefox is safe to install and use, so choose «install anyway».

Firefox has ended support for Windows XP and Vista

Firefox version 52.9.0esr was the last supported release for Windows XP and Windows Vista. No further security updates will be provided for those systems.

Install Firefox on Linux

This article will show you how to install Firefox on Linux.

How to download and install Firefox on Mac

This article explains how to download and install Firefox on a Mac.

Find what version of Firefox you are using

Learn how to find out what Firefox version you are using, to help troubleshoot a problem or just to know if Firefox is up to date.

Install an older version of Firefox

Downgrading to an older Firefox version doesn’t solve most problems. This article links to older versions and provides some alternatives.

Recover user data missing after Firefox update

If your bookmarks, passwords, preference settings and other data are missing, it may be available in another Firefox profile. Learn more.

Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release

Firefox 78 is the last supported version for Mac OS X 10.9, 10.10 and 10.11. Users will be moved to Firefox Extended Support Release (ESR).

What is the Mozilla Maintenance Service?

Firefox and Thunderbird install Mozilla Maintenance Service to allow seamless background updates. Learn how it works and how to disable or remove it.

Uninstall Firefox from your computer

This article describes how to remove the Firefox application from your computer and also how to remove the personal information that Firefox stores.

Upgrading to the new version of Firefox (84+) on Apple Silicon

How to make sure you’re using the Apple Silicon version of Firefox.

Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8

Firefox version 49 and above are no longer supported on Mac OS X 10.6, 10.7 and 10.8. Learn more about your options.

Windows 10 S won’t let me install Firefox

Windows 10 S Mode can only run applications downloaded from the Windows Store.

I found a fake Firefox update

What to do if you spot fake notices claiming to contain an «urgent» or «critical» Firefox update.

How do I tell if I have the 32-bit or 64-bit Firefox?

Not sure whether you’re running 32-bit or 64-bit Firefox? This article explains how to find out.

Switch to Firefox Extended Support Release (ESR) for personal use

How to switch to Firefox ESR as a workaround for issues with the newest version of Firefox.

Firefox release notes — What’s new and known issues

Links to release notes for Firefox and Firefox for Android.

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