Pinterest bookmarklet button for add-on bar (instead of bookmarks toolbar)

I use to hide the bookmarks toolbar to save screen space, but often I need the pinterest bookmarklet.

This small firefox add-on provides a pinterst bookmarklet button draggable on the add-ons toolbar (or in other firefox customizable areas):

I use it as an extension of the Toolbar Buttons Firefox Add-On:

Service provided by web design