MD5 (xpi/flashblock-1.5.6-fx.xpi) = 7b31423c968116811fae39935f58a8a7
SHA256 (xpi/flashblock-1.5.6-fx.xpi) = 0425f20abec24197c9da1f6760e36e2aef1b4cfb2fdc7cd7945375f5fb10f42a
SIZE (xpi/flashblock-1.5.6-fx.xpi) = 70043