If you hate having multiple windows of Windows Explorer cluttering up your taskbar and enjoy using tabs then this hack may interest you.
You will need the latest version of Firefox and IE Tab for this hack.
Once you’ve got both installed and ready to go, open up Firefox. Go to the IE Tab Options and under the Sites Filter tab there should be a bar at the bottom labeled URL. Type file:/// and click add. Click apply then OK and your done!
Now open up a new tab in Firefox and type any directory on your computer in the address bar such as: C:Documents and Settings and it should show up in the Firefox tab.
**Hint**
You can bookmark and search local directory URLs just like you would with a website. =]