Firefox Status Bar Missing? According to Mozilla, starting with Firefox 4, The status bar has been positionally replaced by the Firefox Addon Bar, and many of the status bar features such as page loading status, and download status have been moved. However, if you had addons that used to appear in the status bar, you can still find them in the new addons bar, that displaces the old status bar. So if this bar is missing, maybe the real question should be, Where is my Firefox Addon Bar?
How to enable/disable the Firefox Addon Bar:
Press Ctrl + / to enable or disable the Firefox Addon Bar