The Yahoo! Toolbar remembers previous searches and presents them to you as suggestions when you type similar phrases. This allows you to rediscover previous searches, so you can achieve similar results. However, this also means anyone looking over your shoulder or having access to your browser may see your previous searches. If this is undesirable, you can clear the recent searches from the toolbar and set it up to never remember searches. Writer Bio

How to Clear the Search History From a Yahoo Toolbar - 98