While it still cleans the item(s) correctly, CCleaner displays zero results when scanning for and/or cleaning Firefox's internet history. I have documented/recreated the issue in the following video: http://youtu.be/VUVxVxAlHLs?hd=1
I, too, want to see some indication that CCleaner is doing something to the registry. Either by displaying the keys it's deleting or at least letting you know how many it is affecting. Indicating 0 files after analysis of a section implies there's no action taken.
For a long time this didn't bother me. But now as more and more areas are addressed this is important.