To clear the browser history in Internet Explorer, click the cog icon at the top-right of the Internet Explorer window and select Internet Options. When the Internet Options dialog box opens, click the Delete button under Browsing history on the General tab.
Clear all of your history - Firefox
Click the menu button , choose History, and then Clear Recent History….
Select how much history you want to clear:
Click the drop-down menu next to Time range to clear to choose how much of your history Firefox will clear.
Finally, click the Clear Now button. The window will close and the items you've selected will be cleared.
Clear all of your history - Safari
Choose History > Clear History, then click Clear. Safari also clears caches and the list of recent searches, and removes the website icons that appear in the searchand address field. Clear items: Choose History > Show History, select historyentries and daily sets of entries, then press Delete.