Firefox jQuery Button I found and can't move.

Firefox jQuery Button I found and can't move.

Yesterday Wednesday 2/6/2013 I was adding buttons to my tool bar when I seen these in the Customize Toolbar Box a button with no name so I dragged it up to tool bar. Now I can't remove them.  I moused over then and does says

jQuery version 1.6.4 (on one side and other)  jQuery UI Version 1.8.16 Plugins used: Datepicker,Menu

The buttons when I click them do nothing. The are a single button.

So How do I remove them ??? I have no clue how they got loaded too.