Your best bet is probably iCab, which had its last OS 9 release in 2008. Still pretty old, but you’ll at least have some relatively modern support for stuff lik

Your best bet is probably iCab, which had its last OS 9 release in 2008. Still pretty old, but you’ll at least have some relatively modern support for stuff like CSS. I used it on OS 9 at the time and it worked pretty well then.