The latest version Internet Explorer 7 has to a large extent overcome its vulnerability to security threats although the demerit is add-ons and expansions are not possible with Internet Explorer. This restricts the power to customize and exposes personal information to greater risks. The redeeming feature is Microsoft has provided in this version the facility to click on the "Tools" menu bar carrying the option for deleting the user’s browsing history.
Mozilla Firefox is an open source platform with the facility to delete personal information by clicking Tools menu and then the user has the "Clear Private Data" option. There are optional tools like ‘FoxTor’, ‘Distrust’, ‘Anonymization Toolbar’ and ‘Stealther’ that facilitate the user to browse with anonymity. These optional tools temporarily disable sensitive data like the user browsing history, cookies and stored information. One can click on the options menu and select ‘Clear browsing data’.