OS X :: Want To Delete History?

I found this in archives, but it did not help. I want to delete history. I have FF set to delete history after zero days, and I can "clear private data", but when I start to type in the browser window history pages appear in a drop-down. I unchecked the FF box for storing things I typed in boxes. If I go to "tools" I get > Web search, Downloads, Add on's, error console, page info, clear private data.Preferences is under "firefox" tab.I say all that cause the forums all say look under "tools" for "clear History".It's not there. There is no specific "clear history".The "clear private data" is not clearing out everything, just the stuff in the history viewer, but that is not there anyway as it stores for zero days.