Rated 4 out of 5 stars
With the FF4 update, I have unreferenced styles that interfere. Example: I have a style which has the @-moz-document domain("wikidot.com") but it shows up on any domain.This review is for a previous version of the add-on (220.127.116.11-signed).
You may have portions of your style that apply globally. Please post your code on forum.userstyles.org and I can help you.