Antoinette

I've been happy with CCleaner for a couple of years. I just downloaded version 5.05 and now I am afraid to run it because I don't know what it will do. I have Windows 7 and Firefox 38.0.1. If I have "Internet Explorer/Temporary Internet Files" it wants to clean/delete all of my Firefox cookies, and other stuff I don't want cleaned. What do I do? How do I clean the temporary internet files without cleaning the cookies? Thanks in advance for any help.