Rated 5 out of 5 stars
Very, very helpful. Combines the best features of several other findbar extensions with several new ones I've never come across before. I particularly like the bonus it gives to the urlbar dropdown.
There are a couple of issues, though. English is not the programmer's first language, so the instructions and descriptions can be difficult to follow. Also, the control over the quickfind bar is not as developed as the control over the normal toolbarl in particular, it doesn't handle the different modes of operation as well as the full toolbar does.
Still, all in all, it's a very good extension.