http://cookieswap.mozdev.org/notes.html#c5 I expect two improvement: 1. Can set different profile for different tab!! This will be very very cool. 2. Can edit profile from your extension GUI.:) Thank you Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.8.0.8) Gecko/20061025 Firefox/1.5.0.8