(Redirected from How to download and install Firefox on Windows)

This article explains how to install Firefox on Windows, either with a simple online installer from Mozilla, or from the Microsoft Store.

• If you need a full, offline installer with custom options, see Custom installation of Firefox on Windows.
• To update Firefox from a previous version, see Update Firefox to the latest release.

Install from Mozilla’s download server

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. 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.
   
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.
4. Wait for Firefox to finish installing.
5. When the installation is complete, Firefox will open.