Internet radio experience vie browser http port

[a13n]

This is a topic about internet radio.
You know internet radio generally forces users os-dependent strange apps and odd network ports.
My home network doesn't allow them all.
On top of that I hate them all, including the infamous real player.
So my question is:
"Is there any decent internet radio which doesn't require anything else other than a mozilla-based browser and accepts proxy connection?"

Actually it doesn't have to be a stream radio.
It is enough to be able to download sounds as mp3 as such.

Thank you.

[AmIdYfReAk]

1.fm has a brawser based client that i have been able to get working through most proxy's...