Create a FireFox add-on

I am looking to have an add-on created for the latest version of Mozilla Firefox. In the folder is the icons and an image of what is needed. • The add-on icon “4” must be added to the FireFox toolbar with a Drop Down. • The dropdown must have 3 categories, Fruit, Cars and Drinks • The Fruit category must have a further drop down, with 5 categories; Apple, Orange, Kiwi, Cherry, and Water Melon • Each of the 5 fruit categories must have an icon • The Cherry category must open the HTML page in the “Cherry” folder in the browser. See [login to view URL] for what is needed. Source code for project will be required, as it will be used to create actual addons needed.