scrapmac/User-Style-Manager — pull request #131 by doctorcolossus (2014-12-27 01:53:28+00:00)
Title: fix "utils is not defined" err, thrown by utils.makeGUID() at line 57

Just discovered this add-on and love it. Thanks!
Wouldn't work for me in Firefox 34.0.5 (arch linux binary) till I added this line.