If you often use Facebook and conduct several searches, you may need to know how to remove Facebook search history. While you don't need any technical knowledge to remove your Facebook search history, you must follow the procedures exactly as they are written. Take a look at the processes involved in deleting your Facebook search history: Log into your Facebook account and click the downward-pointing arrow in the upper-right corner of the Facebook page. Select Activity Log from the drop-down menu under Settings & Privacy. Click Filter in the upper-left corner of the activity log. Scroll to the bottom of the page to see the search history, then click the circle. By following these steps you can or iphone.