Jumplists is an interesting and very useful feature in Windows 7 operating system. A mouse hover over application button on the taskbar pops-up a box with quick access features, tabs and options of that specific application. Jumplists works like charm for Internet Explorer in Windows 7 but not is same for Firefox browser.
Firefox users can add jumplists support using Winfox program. After the install, you can quickly access websites and tasks currently opened in Firefox browse in one view as a result of jumplists support for Firefox. As seen in screenshot, you can quickly view pinned, frequent and tasks easily. Download WiniFox
If you are interested in (or already have) Windows 7 then it is worth reading this comprehensive post for just about everything to do with Windows 7 here:
ninjarabbits.blogspot.com/2009/11/hopefully-very-comprehensive-guide-to.html