(you need an account to see links)
go to upper right corner and click on the arrow to the right of the monkey icon - within firefox browser.
(you need an account to see links)
mouse down to New User Script
(you need an account to see links)
Put whatever you want in the boxes, except make sure you copied his script and put that in the box second up from the bottom.
Then, make sure to RESTART firefox. navigate to jellyneo item database and do whatever search you want. it should automatically change to just a list of links without pictures.
Do you have any other scripts that might be conflicting with this one maybe?