Perhaps these indicate data leakage? >Searches: Firefox sends Mozilla what you type into the search bar and Mozilla may share that data with its partners. >Si

Perhaps these indicate data leakage? >Searches: Firefox sends Mozilla what you type into the search bar and Mozilla may share that data with its partners. >Sites you visit: For the Suggestions you click, Firefox sends Mozilla the website URL, and Mozilla may share that data with its partners. Interesting that turning off "suggestions" is not located in the "privacy" section.