Before I delete 'site cookies' I would want to see a list of all cookies I have o the computer and then decide which to delete.

Doesn't work. Still logged in to sites after removing cookies. Add-on I had for previous version of FF worked fine.

good , but i would like to erase cookies when i close every site window on browser

Click one button to erase all cookies for the current web site you are on. It's that simple!

Me sirvió para lo que necesitaba. Muchas gracias por la extención.