this is a very old response but still valid AFAIK (edit// I see mouser confirms this above)
A lot of people seem to want to use Url Snooper for downloading YouTube videos.
The ironic thing is that downloading youtubes is simple and URL Snooper is really more useful for much harder cases.
Youtube videos use a special protocol, but it's not hard to download them. you don't need url snooper.
if you want to donwload YT videos, there are many addons and dedicated sites which enable that.
(I'm no expert in the topic, but e.g. dirpy.com | clipconverter.cc | or search addons for your browser.)
See also this search:https://www.donation...oCrzTZfUnJJeAGaZ80Xw
in case that doesnt work (the forum is being modified at the moment), search this board for youtube