Help!!!!! You know the bar thing and when we type in the website that we want to go to then press 'enter', then it takes us to that website? Well it seems to keep the website stored in your computer too, and when i click on the little arrow by the bar thing it shows up along with the other websites, and i really need to delete them, how do i do that?

i have been clicking on all of them but nothing is working, please tell me how! and i need to know quick!!!!!!!!!!!!!!!!!!!!!!!!!