Merci au développeur pour cette excellent extension, il me tarde qu'elle soit finalisée sur Google Chrome avec Manifest V3

Excelente, lo uso desde hace unos años ya. Hace lo que dice y es muy configurable.

Deletes cookies whenever you quit the browser works as expected

OK

Doesn't seem to work anymore. Doesn't delete cookies not in the whitelist. They just remain even after restarting firefox, despite manually doing with clean button. Can confirm by visiting Privacy Settings > Manage Data.