Sorry, Linc,
This prescription didn't work for me at any level.
First, the triple click on -/Library/Safari (which highlighted the link) - Command C didn't seem to copy it to the clipboard. While Finder-Go-Go to folder brought up the dialog box, Command-V didn't paste the link as you described. Trying to repeat the process by highlighting the link then right Click-Copy, followed by the Finder-Go-Go to folder then right click- past still failed to open the folder. All I got was an error message "Folder cannot be found"
I don't find this exactly surprising as it seems my MacBook Pro and OSX 10.8 have, over recent times, not always behaved "according to the script"
Think I'll try some other suggestions on this thread.