How to install Firefox on Windows

This article explains how to install Firefox on Windows using a simple 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.

To install Firefox on your computer:

  1. Visit this Firefox download page in any browser, such as Microsoft Edge.
  2. Click the Download Now button. The Firefox Installer that downloads will automatically offer you the best available version of Firefox for your computer. fx91DownloadButtonWin10
    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.
    • Click Open file in the Downloads notification on Microsoft Edge to start the process.
    • In other browsers, you may need to first save the Firefox installer to your computer, then open the file you downloaded.
      Note: If you see an Open File - Security Warning dialog, click Open or Run.
    Firefox-60-open-file-warning-win10
  3. The User Account Control dialog may open, to ask you to allow the Firefox Installer to make changes to your computer. If this dialog appears, click Yes to start the installation.
    Firefox-Installer-win10-UAC
  4. Wait for Firefox to finish installing.
    FirefoxInstaller-Aug2020
  5. When the installation is complete, Firefox will open.
    fx91InstallDoneWin10
Note: A notification bar with a Refresh Firefox… button may be shown at the top 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.

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