The built-in microb browser doesn't support socks, even if you input all the correct fields in about:config. Fennec/firefox does, though you'll need to configure it manually in about:config. You might want to go that route for now, and hope that socks support gets enabled on the default browser.

tsocks works nicely (i'm using a port by Qole, downloaded from his repository) but you're going to have trouble if you want to use it with microb. Microb is more than just a browser that you, as a user, could start with tsocks -- it's also a daemon that runs at boot time.

Afraid I don't know anything about dante, but I might check into it.