Rated 5 out of 5 stars

One of the best extensions ever made.
CYW helps you to modify ANY web page, automatically, and with a low programming knowledge needed.
Great Support: the extension is now again compatible with FF 20+. This guy deserves all our support.
CYW is absolutely inside my personal top-3 list of the best FF extensions ever created.
Simply amazing.

This review is for a previous version of the add-on (