Facebook is fantastic for engaging with friends and family, but it's also building a database of everything you look for on their site in the background. You may erase your Facebook search history if you wish to minimise the information Facebook stores about you or merely eliminate irrelevant or undesired search items.Follow the steps to clear facebook search history on PC, To begin, visit Facebook, log in to your account, and navigate to your Home page. Select "Activity Log" from the drop-down menu by clicking the down arrow in the upper-right corner of the page. A date-ordered list of all your searches is provided. To remove a single search result, click the block symbol to the right of the result and choose "Delete" from the drop-down menu.