I've get a strange problem with CCleaner: it don't see, completely, Firefox (only IE).
I've tried to reset any settings, uninstall completely CCleaner and re-install without solve the problem.
On Windows section I've:
IE, Windows Explorer, System, Advanced.
On Applications:
Foxit Reader, Adobe Flash, WMP, 7-zip and others programs but not an single entry for firefox.
Sys specs:
Windows 7 x64, Firefox 3.5.5, CCleaner 2.25.1025.