Firefox 52 is the last complete update for Windows XP and Windows Vista. We will release security updates, but no new features. =Why is Firefox ending support for Windows XP and Vista users?= Firefox is one of the only browsers to offer any support for Windows XP and Vista. Microsoft itself ended support for Windows XP in [https://support.microsoft.com/help/13853/windows-lifecycle-fact-sheet 2014] and will end support for Windows Vista in [https://support.microsoft.com/en-us/help/13853/windows-lifecycle-fact-sheet 2017]. Unsupported operating systems receive no security updates, have known exploits, and can be dangerous to use, which makes it difficult for us to maintain Firefox on those versions. We plan to provide security updates for XP and Vista users until September 2017, eve though we will not offer new features for those users. In mid-2017, we will announce a final support end date based on the number of users still on Windows XP and Vista. =Will switching to a different browser keep me protected?= Unfortunately not. Most browsers (such as Google Chrome and Microsoft Internet Explorer) have already ended support for Windows XP and Windows Vista. If upgrading your operating system is not an option, you can still expect continued Firefox security updates until September 2017. =Can I still browse safely with Firefox?= In March 2017, if you are using Firefox with Windows XP or Windows Vista, you will automatically be updated to the [https://www.mozilla.org/firefox/organizations/ Extended Support Release] version of Firefox. You will continue to receive important Firefox security updates, but no other features or updates.You do not need to do anything else. =How can I get the newest features of Firefox?= If you want to keep your Firefox up to date, with all the latest features and updates, you'll need to upgrade your computer's operating system. *Upgrade to a version of Windows that Microsoft still supports, such as Windows 7, 8 or 10. Learn how [https://www.microsoft.com/windows/en-us/xp/upgrade-options.aspx here]. Windows versions not supported by Microsoft are unreliable and unsafe to use, which also makes it difficult for us to maintain Firefox on those versions. *(Advanced): Switch to a Linux-based operating system. Please see the support websites for the version of Linux that you're interested in. =I am a Firefox for enterprise user -- when will support for Windows XP and Vista end?= For planning purposes, enterprises using Firefox should consider September 2017 as the support end date for Windows XP and Vista

Firefox 52 is the last complete update for Windows XP and Windows Vista. We will release security updates, but no new features.

Why is Firefox ending support for Windows XP and Vista users?

Firefox is one of the only browsers to offer any support for Windows XP and Vista. Microsoft itself ended support for Windows XP in 2014 and will end support for Windows Vista in 2017. Unsupported operating systems receive no security updates, have known exploits, and can be dangerous to use, which makes it difficult for us to maintain Firefox on those versions.

We plan to provide security updates for XP and Vista users until September 2017, eve though we will not offer new features for those users. In mid-2017, we will announce a final support end date based on the number of users still on Windows XP and Vista.

Will switching to a different browser keep me protected?

Unfortunately not. Most browsers (such as Google Chrome and Microsoft Internet Explorer) have already ended support for Windows XP and Windows Vista.

If upgrading your operating system is not an option, you can still expect continued Firefox security updates until September 2017.

Can I still browse safely with Firefox?

In March 2017, if you are using Firefox with Windows XP or Windows Vista, you will automatically be updated to the Extended Support Release version of Firefox. You will continue to receive important Firefox security updates, but no other features or updates.You do not need to do anything else.

How can I get the newest features of Firefox?

If you want to keep your Firefox up to date, with all the latest features and updates, you'll need to upgrade your computer's operating system.

• Upgrade to a version of Windows that Microsoft still supports, such as Windows 7, 8 or 10. Learn how here. Windows versions not supported by Microsoft are unreliable and unsafe to use, which also makes it difficult for us to maintain Firefox on those versions.
• (Advanced): Switch to a Linux-based operating system. Please see the support websites for the version of Linux that you're interested in.

I am a Firefox for enterprise user -- when will support for Windows XP and Vista end?

For planning purposes, enterprises using Firefox should consider September 2017 as the support end date for Windows XP and Vista