Thank you very much for the reply. I didn't know i could use Chrome extensions. Unfortunately the extension doesn't seem to work, i still get suggestion based on history if i type something in the address field. And i think the other way wouldn't work, because i often use CCleaner which also deletes "history" file in default folder, so the trick of making it read only wouldn't last for long.
But thank you very much, i will further search to see if i can find some other extension from that site.
Very much oblidged.