How can I delete the searches that searched on google with Mozilla Firefox?

Question

I searched searches and I have Mozilla Firefox and I don't knowhow to delete search history. When I press clear data, the data is still there

Answer 1

click tools and go down and press clear private data, select which you want to delete (history, cookies, cache,etc.).

Answer 2

Go to Tools and then Options.  Click on the Privacy tab at the top.  Under History make sure the box is NOT checked for "Remember visited pages for the last --days"  Then under Private Date check "Always clear my private data when I close Firefox."