Q:

Does the Web Developer toolbar really have a Save button to save CSS modified in Firebug? 

According to this S.O. answer the Firefox Web Developer toolbar has a Save button:
However, the answer shows an image of the toolbar which does not show a Save button:

I just installed the toolbar to take advantage of this option but I do not see a Save button.  
Does the Save button exist? 

A:

Yes, when you actually edit the CSS there is a "Save" button on the window:alt text http://img14.imageshack.us/img14/6628/screenshotdoesthewebdev.png

