When you run any programs, the shortcut will be stored and displayed in the Start Menu together with the recently opened items. Each application has unique jump lists which correspond to the features unique to the application, such as files recently opened or common tasks. For example, a Microsoft Word jump list might display all the recent documents opened; the Windows Media Player jump list displays recently played tracks and playlists that have been played. Mozilla Firefox’s jump list displays frequent history of websites and the ability to open a new tab or start private browsing. Windows Live Messenger’s jump list displays select common tasks such as instant messaging, signing off, and changing online status…
Some people like the new Jump Lists feature and some don’t. Depending on whether you’ve got used to it which gives you the convenience of opening the items that you recently opened or if you prefer a little privacy when you are on a shared computer.
Fortunately it is very easy to clear and disable the Jump Lists in Windows 7. Simply right click on the Taskbar, select Properties, click on the Start Menu tab and uncheck “Store and display recently opened items in the Start menu and the taskbar“.
After unchecking this option, you will no longer see the Most Visited and Recently Closed items in Chrome, Frequent histories in Firefox, and etc. Unfortunately most programs doesn’t offer an option to disable the jump list for the particular software.
If you’re a Firefox user, you’re in luck because there is a hidden option where you can disable Firefox Jump List. At the address bar, type about:config and then follow that by typing browser.taskbar.lists.enabled at the filter. The default value should be true and all you need to do is double click on the value to change it to false. This change takes effect immediately.