Cookie AutoDelete - Control your cookies! Auto deletes unused cookies from your closed tabs while keeping the ones you...
I don't care about cookies - Get rid of the annoying cookie pop-ups related to GDPR
Cookie Manager - This Cookie Manager allows you to quickly view and edit specific cookies.
Consent-O-Matic - Automatic handling of GDPR consent forms.
Cookie Quick Manager - An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
MozillaCookiesView - Alternative to the standard Cookie Manager provided by Netscape and Mozilla browsers.