Not a review and i have nothing to complain about - *i need help.*
Last week or 2, when i start Firefox, check the Cookiebro menu / find that my whitelist and blacklist have disappeared. (Thnk goodness i have them saved.) So far i can see, it is Firefox doing it, not Avast. I don't know whether caused by Firefox setting i changed or yet another troublesome change Firefox made.
I have Firefox set to allow cookies generally.
*Please help.*

I have been using it for 7 months now, after trying many other similar addons, this one is the best by far !!

[I will add new updates below, depending on the circumstances]

[they changed the icon provider from google to duckduckgo which is a safe alternative, so you can ignore much of what I posted below]

Best cookie manager hands down. Absolutely amazing little addon! Whitelist approach with timed removal of unwanted cookies is the best approach I can think of to reduce tracking and maintain a functional browsing! 5 stars! Just found the log and cookie editor which is mind blowing! Can even block or whitelist individual cookies on a single website or globally. There is nothing that I have found that comes even close. Deletes ALL unwanted cookies unlike Cookie AutoDelete, and "Self Destroying Cookies", which left hundreds behind. GREAT JOB!

Be sure to disable favicons if you don't trust sending some of your browsing data to duckduckgo. When fetching the favicon, you send the domain to duckduckgo for icon retrieval. This happens only when opening the cookie editor and log.

Please consider adding an option to delete a tabs cookies, and all the rest on tab close.

This would give it a leg up.

Replaced Cookie AutoDelete, which did not auto-delete all cookies that were not in the whitelist. This extension does. I am so happy. Kudos!

Very unintuitive. What is the default action for cookies with this addon? What happens to cookies that are neither whitelisted nor blacklisted? I have this add on installed and I honestly still don't know how my browser treats a cookie from a brand new site. What is the point of a cookie log that doesn't tell you how the cookies were handled? How should content blocking in Firefox settings be configured? Why write an addon with zero documentation? Hey, geeks can use it so who cares about normal people?

Ugh I miss the old Cookie Monster addon, so intuitive and easy.

Enables autoclearing cookies every 2 hours by default on install without alerting the user about it. Cookies that it clears include Google, Reddit, Trello, etc session cookies, forcing you to immediately log out of all platforms.

Good addon, but it was really unpleasant surprise that it deletes google, youtube, facebook etc. cookies each 2 hours by default. I spent hours trying to find the reason for my auto-logouts from many sites. I blamed adblocks, anti-tracers, containers...

I would suggest you'd better make default the option "do not delete unwanter cookies periodically".

A very gread cookie Addon for Firefox.
I like especially the clear Option Menu, where you can see all whitlisted sites and other functions. Best of all i have ever seen.
But there is one thing i REALLY REALLY miss:
• I would like to have an option to instantly whitelist a site, with your yellow button, not going in the option menu.
Shame on me: this option is already there, could not see it while testing, because all sites were already whiteliste
• And also interesting: an option to clear all unwanted cookies after some time.
Added: sorry my wrong, this option is integrated, thanks.
But otherwise a great tool for daily work.
So no otherwise anymore: 5 stars: a great addon !!

Great addon. I'd love to have the ability to lock cookies so they cannot be edited by the browser. Thanks!

Very nice, customizable interface which is economical with your time! Nicely designed and it works too!

Cookies exportados pelo Cookiebro no Firefox não podem ser importados pelo Cookiebro no Opera (Chrome).

Great extension! For me, this replaced the frustrating Cookie Autodelete. Superior features include: fine grained control, simple file format for saving/editing/restoring white list, built-in cookie editor, and much more.