Generate webloc thumbnails

[eN0ch]

Can someone with more geekery than I'm blessed with help me set up a shell script to use within in a Hazel rule, that would apply a thumbnail image of the webpage that the selected webloc file points to? Does that make sense?

I actually had such a thing working before, but it stopped working a while back - possibly as of Mountain Lion? (I'm now on Mavericks.)

I have http://hasseg.org/setWeblocThumb/ installed in my system. And here is my existing Hazel rule with the shell script that used to work: https://www.dropbox.com/s/hhit9tqlkmdwr2u/Screenshot%202013-10-29%2023.11.08.png

Can someone guide me as to why the script no longer works and how I might fix it? Thanks.