How do you delete things from a search engine such as google or ask that always appear in the drop down box.?

Question

Whenever you type that letter an example is if I type "b" then all the things that start with "b" in the image search engine will appear. HOW DO I STOP THAT FROM HAPPENING??

Answer 1

Mozilla Firefox:

Tools (in the top menu)

Clear Private Data

Answer 2

Try clearing the website history