When did Firefox stop supporting Windows 7 and 8?

Firefox stopped supporting Windows 7, 8, and 8.1 with version 115.

Will Firefox 115 ESR receive any more updates?

Yes, the Extended Support Release for Firefox 115 will receive security patches until the end of February 2026.

What are the alternatives for Firefox users on older Windows?

Users on older Windows versions can upgrade to Windows 10 or 11, or switch to a Linux distribution.

Home / Technology / Firefox Narrows Support: Windows 7/8 Users Must Upgrade or Switch

Firefox Narrows Support: Windows 7/8 Users Must Upgrade or Switch

18 Feb

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Summary

Firefox version 115 no longer supports Windows 7, 8, or 8.1.
Extended Support Release for Firefox 115 ends by February 2026.
Users must upgrade to Windows 10/11 or switch to Linux.

Firefox Narrows Support: Windows 7/8 Users Must Upgrade or Switch

Mozilla has officially ended support for Firefox on Windows 7, 8, and 8.1, effective with version 115. This version is now part of the Extended Support Release (ESR) channel, which will continue to receive essential security updates until the end of February 2026. This decision impacts users who have not yet migrated from these older operating systems, which were first released in 2009.

Mozilla recommends that users of unsupported Windows versions upgrade to Windows 10 or Windows 11 to maintain full compatibility. For those unwilling or unable to upgrade their operating system, switching to a Linux distribution is presented as a viable alternative. This move aligns Firefox with other major browsers that have already ceased support for Windows 7 and 8.

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