Rated 5 out of 5 stars
Many thanks to the developer.
Being some what particular about which web site stores cookies on my computer / device and for how long - I have an exception list that is perhaps at least a 150+ long. (Haven't really counted). Being a user of Camino, an older Mac only browser, I was quite used to being able to search through the cookies exception list. I found it surprising that the Mozilla dev team / product team hadn't thought of this simple functionality that was already there in older browsers. The advantage of smaller dev teams, perhaps.
This CookieExFilter is the most elegant and efficient addon to do the job of searching through the cookie exception list. Allows you to fine tune the privacy settings.
The only thing that could make this better is if the search functionality was built in right into the 'Address of website' bar instead of having another 'Search' bar. It could be simple enough to search through a SQLite db from the input bar itself.
Many thanks to the developer again.