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

This article explains how to download and install Firefox on Windows using a simplified online installer. ('''Advanced users''': see the [[#w_for-advanced-users|For advanced users]] section at the end of the article.) *To update Firefox from a previous version, see [[Update Firefox to the latest version]]. {for mac,linux}{note}'''This article only applies to Windows.''' {for mac}For instructions to install Firefox on Mac, see [[How to download and install Firefox on Mac]].{/for}{for linux}For instructions to install Firefox on Linux, see [[Install Firefox on Linux]].{/for}{/note}{/for} {note} '''Before installing Firefox, see the [https://www.mozilla.org/firefox/system-requirements Firefox System Requirements]''' to make sure that your computer has the required operating system and recommended hardware. {for winxp} Do not install Firefox using a limited '''Windows XP''' account. For more information, see Microsoft's support article [https://support.microsoft.com/kb/2663817 How to determine your user account type in Windows]. {/for} {/note} # Visit [http://www.getfirefox.com/ '''this Firefox download page'''] in any browser, such as Microsoft Internet Explorer{for win10} or Microsoft Edge{/for}. #*<!--L10n: Either omit this note or use the link for your language.--> Alternatively, use [https://download.mozilla.org/?product=firefox-stub&lang=en-US this download link] for the latest English (U.S.) Firefox version. # Click the {button Download Now} button. The Firefox Installer that downloads will automatically offer you the best available version of Firefox for your computer. For example, if you have a 64-bit version of Windows, you are offered the 64-bit version of Firefox (details [https://blog.mozilla.org/firefox/firefox-64-default-64-bit-windows here]). #;[[Image:Download-Firefox-Win10]] #*If you use Microsoft Internet Explorer{for win10} or Microsoft Edge{/for}, 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 {button Run} 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.<br> '''Note:''' If you see an ''Open File - Security Warning'' dialog, click {button Run}. #;[[Image:Firefox-60-open-file-warning-win10]]<br> # Depending on your computer's security settings, you may need to grant Firefox access to change files on your device. If this option appears, select {button Yes}. #;[[Image:Firefox-Installer-win10-UAC]] # Wait for Firefox to finish installing. #;[[Image:Firefox-60-Installer]] {note}'''Note''': The Firefox Installer may contain an Update or Re-install button and an option to restore default settings and remove add-ons, if a very outdated Firefox version or very old [[Profiles - Where Firefox stores your bookmarks, passwords and other user data|profile data]] is detected.<!-- Bug 1369255 Profile clean-up option in stub installer--> Clear the checkbox to keep the old data and click {button Update} or {button Re-install} to start the installation. <br>[[Image:FirefoxInstaller-Reinstall]]{/note} # When the installation is complete, Firefox will open. {note}'''Congratulations, you are done installing Firefox!''' Double-click on the Mozilla Firefox icon whenever you want to go online. ;[[Image:Firefox-Icons-Win10]]{/note} == Having problems?== Here are some articles that can help you: * [[Firefox won't start - find solutions]] * [["Firefox is already running but is not responding" error message - How to fix it]] * If you see the message, ''Firefox cannot be installed. This version of Firefox requires a processor with SSE2 support.'' see [[Your hardware is no longer supported]]. = For advanced users = The [http://www.getfirefox.com/ Firefox download page] provides a streamlined online installer that automatically installs a suitable Firefox version for your operating system with no options to change settings such as the installation folder location. If you need a full, offline installer, if you want to choose the language and operating system or if you want to customize your Firefox installation, visit the [https://www.mozilla.org/firefox/all/ Systems & Languages page] instead. From that page, find your language and then download either the '''Windows 32-bit''' Firefox version or, for 64-bit operating systems with Windows 7 and above, the '''Windows 64-bit''' version of Firefox. Options available in the full, offline installer are described in the article, [[Custom installation of Firefox on Windows]].