[jorvi]

There is a newer extension called CookieBro that is much better than CookieAutoDelete. Not only does it have more options for dealing with cookies, CookieAutoDelete often would leave some cookies alive.

[rapnie]

Unfortunately CookieBro is not open-source it seems.

[ffpip]

I use cookie quick manager.

It can delete all cookies on closing browser (except the ones you have 'protected' in the addon settings like reddit and YT)

You cab also edit cookie values and change properties, etc