Deletes site data of all websites including history. This option should not be default or at-least there should be warning. I'm now using "Cookie Quick Manager" which allows choosing which ones to delete.

This system is already have Firefox browser. But it's save time.

YES, what I want.
Thank You

Me sirvio mucho para limpiar mi navegador ya que se ponia muy lento.

Great extension

Is not there some trouble since some weeks ?
I suppress everything excepted passwords, for all time, not reloading tabs. When it is done, I go to Firefox options, Privacy and Security. Then, I can see some things remain in cache or site's data.

This is the best cleaning extension among others. It cleans the cache, history whatever I want. It has lots of options and lets me to choose which things to be removed or not. I recommend this extension to you people.

Works good!!

nice add on, but can developer add duration of notification setting