Thunderbird 52 will be the last complete update for Windows XP and Windows Vista. Thunderbird 60, the release version following 52, will not support Windowx XP or Vista at all =Why is Thunderbird support ending for Windows XP and Vista users?= Microsoft itself ended support for Windows XP in [https://support.microsoft.com/help/13853/windows-lifecycle-fact-sheet 2014] and ended 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 to maintain Firefox on those versions. =How can I get the newest features of Thunderbird?= If you want to keep your Thunderbird up to date, with all the latest features and updates, you'll need to upgrade your computer's operating system. *Upgrade to a Windows version 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 that are not supported by Microsoft are unreliable and unsafe to use, which also makes it difficult to maintain Thunderbird on those versions. *(Advanced): Switch to a [https://wikipedia.org/wiki/Linux Linux]-based operating system. Please see the support websites for the version of Linux that you're interested in. =I am a Thunderbird enterprise user – when will support for Windows XP and Vista end?= There will be no support in the Thunderbird 60 release.

Thunderbird 52 will be the last complete update for Windows XP and Windows Vista. Thunderbird 60, the release version following 52, will not support Windowx XP or Vista at all

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

Microsoft itself ended support for Windows XP in 2014 and ended 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 to maintain Firefox on those versions.

How can I get the newest features of Thunderbird?

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

• Upgrade to a Windows version that Microsoft still supports, such as Windows 7, 8 or 10. Learn how here. Windows versions that are not supported by Microsoft are unreliable and unsafe to use, which also makes it difficult to maintain Thunderbird 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 Thunderbird enterprise user – when will support for Windows XP and Vista end?

There will be no support in the Thunderbird 60 release.