If there is one Firefox add-on for Youtube that sticks out of the crowd it’s the Better Youtube extension by Lifehacker. Better Youtube is a compilation of Greasemonkey scripts compiled together in an add-on which has several advantages. The first is that Greasemonkey does not have to be installed to use the advanced features that the add-on provides, another that you only install one add-on and not five or six Greasemonkey scripts.
