Using latest version of Firefox, 3.6, CCleaner no longer deletes normal 40-80 mb of history from Windows Explorer, now only fraction of mb deleted, used to delay after cleaning IE files, now zips through the Firefox (all checked in both the IE and Windows Explorer and System options boxes. What can I do?
Sorry, but I'm not sure I understand your question. Is the problem that CCleaner no longer deletes as much data from Windows Explorer since you updated Firefox? If so, can you tell which specific items aren't getting deleted? There should be several items under Windows Explorer. If you run Analyze it'll tell you specifically which items will be deleted. Are your Firefox files being deleted normally as before?
Do you have the latest version of Firefox, 3.6.8? They released 3.6.7 then just a couple of days later they released 3.6.8.
You could always try completely removing CCleaner and doing a fresh install.