Rated 5 out of 5 stars

This is to add balance to my earlier review. CookieKeeper is an outstanding add-on. It covers conventional and LSO cookies and in this it is, as far as I know, unique. I find it invaluable.

Unfortunately it has not been updated for Firefox versions later than 49.0, but as noted earlier, it does work in Firefox 54.0 save for one annoying bug.

This user has a previous review of this add-on.