Ubuntu's new Unity interface has some cool features, but if its global menu bar just gets on your nerves, here's how to turn it off.
This trick will get your menu bar — that is, the bar with the File, Edit, View and other dropdown menus — back into each individual window, rather than on the top menu bar. The global menu bar saves space, but can be confusing since it hides the menus by default, and especially annoying if you use multiple monitors and don't want your menus too far out of reach. Luckily, to bring back the old fashioned menus, you just need to run the following command in a Terminal:
sudo apt-get autoremove appmenu-gtk appmenu-gtk3 appmenu-qt
Then restart your apps and you should see the menus back where they belong. In Firefox, you'll need to go into Tools > Add-Ons and disable the Global Menu Bar Integration extension as well. Hit the link to read more, including how to restore the global menu bar if you want it back.