@etherdiver @mdhughes Safari has never done anything sketchy that I know about. It's very utilitarian.
Epiphany is also WebKit based, and Konqueror can do either WebKit or KHTML (the older standing that WebKit is based upon, but which can't do a lot of modern JS stuff).
It's a while since I used it, but Midori browser has an Android version, and I think is WebKit based still.