New
#1
Firefox will support Windows 7 and 8.x until late 2024
It looks like Mozilla will be supporting Windows 7 & 8.x with the next Firefox ESR release until sometime in late 2024
as I've recently read from the following sites:
Firefox gives Windows 7 and 8 users more than one extra year of support - Neowin
Firefox will support Windows 7 and 8.1 until 2024 via the ESR channel