I recently installed Firefox 7.0.1 and it worked fine for awhile. Now today the ability for me to drag and drop tabs is gone. I do not have any tab related add ons installed so I know this is not the issue as some people have had. Any help with this would be greatly appreciated.

Edit: It seems that the problem was a Windows 7 issue. I later learned that I could not drag and drop anything in Window 7. A simple restart fixed this problem.