It won't let me cut and paste the screen shot here, so ... I've been using FF and CCleaner (pro/paid) for years so I'm familiar. The top five boxes of Application/Firefox in CCleaner is checked like they have been for a long time. In Advanced Report, there is no reference at all to Firefox now, like before. The only thing I have Firefox clean automatically on shutdown is history. The rest, CC used to take care of.