Caddie 16 onwards.
I can only seem to get the I-drop tool to work with Microsoft Internet Explorer.
The I-drop tool uses browser objects that only work with the Microsoft Internet Explorer browser. Both Chrome and Firefox don't have the ability to display the I-drop objects. However there is a way to achieve this. The structure of both browsers allows the use of Extension (Add-Ons). In both cases there are extensions to add the Internet Explorer capability. Once these extensions are installed, any TAB can be made to look like an Internet Exporer tab and the I-drop tool will work.
For more information have a look at http://www.ietab.net/