Concept it good, but practically it's a different thing. Fails on few scenarios and doesn't delete cookies as often as intended.

Let's say, you want to delete all cookies automatically on startup, except the ones you mention as "Never". But on startup, those unnecessary cookies are not deleted! Why? Because, selecting "On Startup" or "Leave" will not delete cookies automatically for all intended sites. You have to still visit each website and apply "on Startup" or "Leave" for each individual website and then only it gets deleted on startup. Pretty pointless.

Try to work around this, so that, cookies get deleted automatically (except the ones you mention as "Never") without having to visit each and every website and apply individual options.

until now I´ve used "Cookie Quick Manager" which sadly seems not getting any further development. So I´ve switched to "Vergiss mein nicht" since a few weeks, and on the whole it´s an easy to use, innovative AddOn.

But something is nevertheless going wrong here, bc every few days some with "[N]ever" protected cookies and their stored website-data are gone and I can input every website-specific stuff once again. Any possible other, auto-erasing possibilites, cache-cleaner etc. are disabled here.

With "Cookie Quick Manager" that -never- happened, secured cookies were reliable stored over -months- there. So I´m clueless and not really happy with this AddOn right now. :(

I been looking for a way to block all cookies on some sites. This works perfectly, thanks for the addon.

Great Extn... can you do a Safari version?

Amazing!
Note: Could improve UI a bit and simplify UX.

IndexDB and Cache cannot be cleaned on leave. Rules can only define that a domain is cleaned at a different time but you cannot make different clean rules for a domain, like: For this domain, I don't want cookies to be cleaned at all but I still want everything else to be cleaned according to global rules. Thus you can also only choose to clean all cookies or no cookies, no way to make exceptions for single cookies only. Cookie AutoDelete can do all this and has none of the restrictions mentioned.