Well I think I figured it out, this is true on portable and regular version.
I removed CCleaner from computer and reloaded. It found cookies just fine listed on left side, but it had a long list on right side to keep and none of them were mine, stuff like facebook, yahoo and google plus many more. If I added what I wanted on the right side and to CCleaner list that was already there from the loading- all was fine. If I deleted the defaults that came with CCleaner like facebook, yahoo, google and others, then it wouldn't find any cookies to list on left. I didn't try deleting just one of the defaults that came with CCleaner, I did them all. Maybe there is a magic one, but I got tired and didn't like them pushing me into keeping certain cookies. I can just do this through FF manage list.
My guess is since Avast took over, these companies pay not to get their cookies deleted?
Bad CCleaner