How to install Firefox on Windows

Revision Information
  • Revision id: 228665
  • Created:
  • Creator: Julie
  • Comment: changed the step by step instructions to be less wordy, added in additional new screenshots to match the other new ones that were recently approved.
  • Reviewed: No
  • Ready for localization: No
Revision Source
Revision Content
Windows 10 may show you a warning when installing apps that aren't from the Microsoft store. See Windows 10 warns me to use a "Microsoft-verified" app for more information.

This article explains how to download and install Firefox on Windows using a simplified online installer. (If you need a full, offline installer, or custom options, see For advanced users, below.)

This article only applies to Windows. For instructions to install Firefox on Mac, see How to download and install Firefox on Mac.For instructions to install Firefox on Linux, see Install Firefox on Linux.

Before installing Firefox, see the Firefox System Requirements to make sure that your computer has the required operating system and recommended hardware.

Do not install Firefox using a limited Windows XP account. For more information, see Microsoft's support article How to determine your user account type in Windows.

  1. Go to this download page.
  2. Click the Download Now button.
    fx91DownloadButtonWin10
    The website will automatically discover and download the best available version of Firefox for your computer.
  3. Find and double click on the install (.exe) file (located where your browser puts downloaded files).
    fx91EasyInstallFileWin10
    • Alternatively, in some browsers, you can click on the file in the download bar at the bottom of your browser. For example, this is how it looks in Chrome: fx91DownloadBarGoogleWin10
  4. Click Yes on the User Account Control dialog box to start the installation.
    fx91UACWin10
    Some versions of Windows 10 will show you a warning when installing apps that aren't from the Microsoft store. See Windows 10 warns me to use a "Microsoft-verified" app for more information.
  5. Firefox will now install.
    fx91NowInstallingWin10
  6. When the installation is complete, Firefox will open.
    fx91InstallDoneWin10
Note: A notification bar with a Refresh Firefox… button may be shown at the bottom of the page, if Firefox was previously installed. See Refresh Firefox - reset add-ons and settings to learn more.
Congratulations, you are done installing Firefox!

Double-click the Firefox icon that was placed on the desktop whenever you want to go online.

FirefoxShortcut

Having problems?

Here are some articles that can help you:

If you need more help, you can always get community support.

For advanced users

The streamlined Firefox Installer installs a suitable Firefox version for your language and operating system. For example, on 64-bit Windows, it installs the 64-bit version of Firefox (details here). To install Firefox in another language or operating system, or if you need a full, offline installer with custom options, download the Firefox Setup file from this download page. Options available in the full, offline installer are described in the article, Custom installation of Firefox on Windows.