Like another user from NC *named NC* pointed out, while it does do as described it appears the site is all but abandoned. I just installed this extension for the second time, to see if it would perform any better and three minutes into attempting to access userstyles.org, it still hadn't loaded. It is as if someone has forgotten there has to be someone behind the scenes running the website or at least paying less than $4.00 a year to get it to run quickly, possibly smoothly. I do not recommend & suggest finding another extension that is similar where someone takes pride in it, ensuring it runs & is up to date.