How to install Firefox on Windows

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

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, make sure that your computer meets the System Requirements.

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.

Note: The download page will automatically give you the 32-bit version of Firefox. If you are running 64-bit Windows 7 or above, you can install the 64-bit version of Firefox, which offers better performance for applications and games but has limited support for plugins (plugins, except of Adobe Flash and Microsoft Silverlight, don't work in 64-bit Firefox). You can download 64-bit Firefox from the Systems & Languages page.

For advanced users: The Firefox download page linked below automatically chooses the best available version of Firefox for your computer and provides an online (stub) installer. If you need a full, offline installer or if you want to choose the language and operating system, visit the Systems & Languages page.

  1. Visit this Firefox download page in any browser, such as Microsoft Internet Explorer or Microsoft Edge.

    again updated download Firefox
  2. Click on the Free Download button to download the Firefox installer. The page will automatically recommend the best version of Firefox for you.
    Alternatively, use this download link for the latest English (U.S.) Firefox version.
    • If you use Microsoft Internet Explorer or Microsoft Edge, a notification bar will appear at the bottom of the page with the options to run the installer or save the file to your computer. Click Run to start the process.
    Fx-RUN-IE11Win7
    • 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 Run.
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  3. Then, just click Install (we’ve made the process as effortless as possible).
    firefox stub installer
    Congratulations, you are done installing Firefox!
  4. Double-click on the Firefox icon whenever you want to go online.
firefox icon

Having problems?

Here are some articles that can help you: