Rated 4 out of 5 stars

yes you are right, at first I could not find it. But what I miss very much: to prevent connection to sites who still use RC4. earlier there was a setting in Cipherfox for this

This review is for a previous version of the add-on (4.0.0). 

Firefox 48 on Linux with a clean profile, CipherFox 4.0.0: http://i.imgur.com/sg5gdDC.png

What menu are you looking in? You want to look in the expanded Site ID dialog (click the lock icon next to your URL bar).

Also, check your CipherFox settings and ensure that "Show CipherFox in Add-ons Bar" and/or "Show CipherFox in Site Identification Dialog" is enabled.