[adrinavarro]

Sadly IceFloor doesn't seem to have an option to quickly filter out in a per-program basis. And Little Snitch, well…maybe a bit overpriced if it's just to block Spotify (hell, they should be the ones providing a setting for that).

[j_s]

Found this on its page, though I don't have the chance to check it out:

  > monitor applications connections , block outbound connections
  > to unwanted services (block chat, p2p...)