Ccleaner v5.04.5151 64-bit runnnig on windows 8.1 pro x64 cannot clean cookies etc on Firefox 37.01. I do not know if it is failing IE11 and Chrome since I have not used either of those in awhile.
I use Firefox both in normal mode and in their Privacy mode. I have all options checked in CCleaner under "Applications / Firefox" tab.
CC runs per normal, reports what it did, no crashes or anything, but when I reopen firefox, i'm still logged in all over the web....