The Addon has less Options than claimed.
I don't have the Option: IndexedDB Databases, Application Cache, Stored Files, Local Storage.

https://cvo.lixl.nl/img/CX2f

После перезапуска браузера приходится назначить автоматическое удаление данных снова. Это делает eCleaner бессмысленным для меня.

Needs "Active Logins" clear, as the one in the resident Clear All History dialogue, shift-crtl-delete. This is a major omission in an otherwise good extension.

eCleaner extension wiped ALL THIRTY SIX LOGINS in my profile, so yes, the "dangerous" warning is drop-dead serious. (Bet you're thinking I didn't back up my profile before testing this. I did.)