To enhance Firefox further, I went on to install...
- Hide Menubar addon - hides the default menubar. Shortcut "Alt" displays teh menu bar temporarily if/when you need it. This gains some space at the top of the window.
- Nightly Tester Tools - allows forced installation of addons that were not updated for version numbers. Risky but well worth it for some extensions.
- Omnibar - enhances address/location bar functionality. "Alt+D" is the shortcut to move cursor to location bar. Now I use this instead of Ctrl+K for the search box. Ctrl+Up or Down changes the default search provider.
- Hide Caption - another addon that provides screen real-estate. This one hides the title bar / caption. Minimize, Maximize, and Close buttons move to the next visible toolbar.