Mozilla has confirmed that Firefox 115 ESR will be the last supported release for Windows 7, Windows 8 and Windows 8.1, with security updates for that branch scheduled only through the end of February 2026 — after which machines running those legacy operating systems will no longer receive...
Mozilla’s support path for users running pre–Windows 10 desktops has reached a clear milestone: Firefox 115 ESR will be the last maintained Firefox build for Windows 7, Windows 8 and Windows 8.1, and Mozilla’s support documentation now states that security updates for those legacy installations...
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