Ver 1.8 is uploaded, awaiting approval. Not sure where v1.7 went!
The main change is support for the new cookie permission type you may have heard about. Starting in FF21 or FF22, you can allow third party cookies but only from sites you've visited (actually only from sites that already have a cookie, visiting without setting a cookie isn't sufficient). It is hoped this will be the default, but if it breaks too many sites then perhaps not just yet. This is a global permission. There is no exact corresponding exception for individual sites, but the new-ish exception type to allow sites to set cookies only as a first party is similar.
DOM storage is still very buggy. In some cases Cookie Controller will not show you storage items, for example on secure pages. A major rewrite is in progress which should fix most of the problems (
bug 600307). Landing perhaps FF21, probably FF22. Firefox will not show you DOM storage items at all, or allow you to delete them other than by deleting everything including cookies, so Cookie Controller is at least better than that.
Private browsing is now on a per-window basis rather than the whole of Firefox (Firefox 20, released April 1st), and Cookie Controller supports this. The toggle button icon in private browsing windows is now (v1.8) wearing the purple face mask. In a private browsing window, Firefox will show you (and allow you to delete) the wrong cookies (
bug 823941). So unfortunately the tidy button is disabled in private windows. There is no ETA for this bug to be fixed.