Facebook and Firefox add-on

Dear, My project is to made a firefox module for facebook, this addon add change in layout of facebook users who are instaliling this module. Change in the layout means adding Two simple new widgets in facebook user's page. First one putted in top of the Wall, and second one inserted in right side bar (in facebook pages). an example of this module is en open source hosted here: [login to view URL] This example may be complexed, but my needing is simple. I would like just to add two widgets with simple HTML content hosted in two to specific URLs will provided later. Please, Do not Bid with hight bugets. we offer just around 30 - 60$