On a related note, Microsoft will end support for Windows 10 one year after that, in October 2025. Mozilla has committed to another year of security fixes, but after that, there won't really be a safe way to browse the web on Windows versions before 10. That left Firefox as the last remaining mainstream browser still supporting Windows versions earlier than Windows 10. Google Chrome, Microsoft Edge, Vivaldi, and most other Chromium-based browsers dropped support for Windows 7, 8, and 8.1 earlier this year. Mozilla is promising to keep Firefox 115 ESR patched with security updates until September 2024. PCs on those versions of Windows will be moved to the Firefox Extended Support Release (ESR) channel, which is updated less frequently but still receives security fixes as Mozilla rolls them out to other Firefox versions. Firefox 115 will be the final update for Windows 7, 8, and 8.1, but Mozilla isn't dropping those operating systems entirely just yet.
