Firefox removed the old style status bar in version 4, see What happened to the Status Bar?

Maybe you had the add-ons bar turned on for the weather icon? If that was the case, pressing command and / on the keyboard will bring it back up. See, The Add-on Bar gives you quick access to add-on features.

See also View > Toolbars

I have done the command /, just restores an empty status bar. The answer submitted does not work. I cannot get my weather or status working. I had to reselect disable the above add - on so i could read a PDF...I had tried resetting Firefox to see if that would help. The answers pertain to Firefox 4, I am using Firefox 14.0.1.

Same situation here. I have several icons that cannot be moved from the non-existent status bar, such as NoSquint and Delicious. They will not budge from the status bar.

Mozilla's removing the status bar from Firefox was a Microsoft move - we're going to do it, you have no say in the matter, and, no, you don't have the choice to view the status bar.