I have uploaded the word doc going over in detail the modifications to the existing plugin. We ended up scrapping everything I had previously written, as things just got far too involved and confusing (in regard to what an end user would see).
I'll share the dd login details with you via IRC.
As always, the final deliverable(s) will need to be a working plugin for both Chrome & Firefox. They will need to be obfuscated and the firefox version will need to be sure to meet mozilla's approval requirements so it can be a fully approved addon