Essential addon after spending some times to understand how it works.
A feature I would love, is the ability to import permission cookies from FIrefox itself, if you were using the built in Firefox cookies manager before.

Here is how to export your permission cookie from firefox :
1- They are stored in a file names permissions.sqlite in your profile data
2- Download DB Browser for SQLite
3- open permissions.sqlite from DBBrowser. Filter on Cookie permission, and paste the result in a txt file. You will then be able to import the url into Cookie Autodelete's white list.