How to delete some info in mozilla firefox?

Question

in mozilla, they do remember some infos like email address, words searched, names, usernames

I just want to delete the info like wrong email typed, wrong username typed,,, coz i don't want to erase all stored info and start all over again

Answer 1

CCleaner use for typed URLs.....etc..

Answer 2

Tools > Privacy > Uncheck what you want there, like the search bar history,

Then, tools > Clear Private Data