I have applications that often have xml data in textareas. These xmls are always in a single line and are difficult to read. I created this addon to make the xmls in a readable format(pretty print). This works only for xmls in html textareas.
I managed to build my first simple addon for Firefox. It may not be built/written properly. It even does not work if there are spaces between tags. I picked up some script from internet to make it work.
This addon may modify the xml data in the textareas, when the context menu option is used. The formatted xml might not contain the original xml data or information. Once modified, the original xml data might not be restored.