> TenFourFox

After Leopard WebKit development was eventually abandoned last year, TenFourFox development will (mostly) cease come September:

http://tenfourfox.blogspot.com/2020/04/the-end-of-tenfourfox-and-what-ive.html

Future builds will be provided by wicknix there:

https://github.com/wicknix/InterWebPPC
https://github.com/wicknix/InterWebPPC/releases