This cookie manager works by selecting cookies for sites YOU WANT TO KEEP. All others are deleted. Other cookie managers work by giving you a long list of hundreds of cookies to delete - ugh!.

Great extension!
Thanks!!!

I cannot thank the developer enough for this cookie Addon!!! I was despairing, because I had a very well set up cookie arrangement pre-Firefox 57, and going on to Webextensions, I was finding it really hard to replicate that. This works so well, and does just what it says. Leaves the cookies I want there, and after a restart of Firefox, all other cookies are gone! Magic, and big thanks. :)

Very nice add-on. Lets you keep the cookies you want to and get rid of the rest. Easy to use and set up. You can set it up to delete unwanted cookies without deleting the saved ones on startup of Firefox. Best cookie manager I've seen since I've been using Firefox.

Great! It's simple and easy but effective.

Not sure if there's supposed to be a toolbar button, but I don't seem to have one. Also, none of the options, apart from selecting existing cookies, do anything in preferences.