Oh indeed, both latest Chrome and Firefox on Windows 7 don’t work anymore.
That said, I just tested both GitHub - Eclipse-Community/r3dfox: r3dfox is a modern Firefox based web browser for Windows Vista & 7. SourceForge link for downloading with older browsers. https://sourceforge.net/projects/r3dfox/ · GitHub and GitHub - win32ss/supermium: Chromium fork for Windows XP/2003 and up · GitHub and they work.
So there is an alternative for users who can install a program.