This is a tool to provide commonly used text (e.g. wiki markup for templates) that you can just copy and paste from a sidebar. You can modify it (with some fairly basic HTML editing) to use whatever text you want.
It can be used with Firefox (or other Mozilla browsers... probably not IE, and not sure about Chrome and Opera.
This is installed on your computer, not on Appropedia itself. One example is at User:Chriswaterguy/Wikibar - feel free to use that or make your own.