Thanks for the reply.
So, you're saying that Health Check erases history if nothing is set, and Custom Clean is Ok if you set it to uncheck or check for each application (history, cookies, etc. for Firefox), right?
However, my CCleaner is the free version, so I'm not sure if it's the one at the end of your comment.
https://community.ccleaner.com/topic/52668-tracking-files-not-cleaned-files-coming-back-solvedexplained/?tab=comments#comment-300043
But my CCleaner is the free version, so I can't get the health check setting at the end of your comment here.
Is this because it's the free version, or does it mean that the health check settings can't be set in detail?