Hi Jan, are you referring to Microsoft ending support for Windows 10? <blockquote>After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. ''[https://www.microsoft.com/en-us/windows/end-of-support End of support for Windows 10, Windows 8.1, and Windows 7]''</blockquote> This is not official, but: Windows 10 and Windows 11 are very similar. I expect that Firefox will continue to be available for Windows 10 for quite a while until some reason is discovered that Firefox needs to change in a way that will make it incompatible with Windows 10. I think the earliest time there would be a change like that would be Summer-Fall of 2026. As a point of reference, Firefox is only now ending support for Windows 7 (the last release of Firefox for Windows 7 is next month).