Keep settings on firefox

Hey guys!

this is a stupid question but yeah..

i use firefox, and when i use CCleaner, the sites in my drop-down adressbar gets cleared.. what do i tick or untick to clean everything EXCEPT those adressed in the dropdown menu?

Just in case you are using Health Check have a read here

https://community.ccleaner.com/topic/60244-cccleaner-pc-health-check/ 

awesome! thank you so much!