Custom Firefox Addon to be developed

[login to view URL] is free online picture hosting site. Site has members' login system. When members login and upload pictures, pictures remain under "My Pictures" menu. (Site also have feature of uploading pictures without registration but it's not relevant here) Now, what I am looking for: You should develop a firefox addon/extension which 1. stores user's login ID & password one time entered by them 2. Thereafter, user will be able to upload pictures without logging into site. 3. Pictures uploaded through firefox addon should also be shown just like other pictures under "My Pictures" menu. 4. The system of uploading & sharing is such that user get various type of URLs eg. Direct url, thumbnail, BBCode etc for his uploaded picture. So the same should be incorporated in addon. Like when user upload pictures through addon, firefox should open a tab with his uploaded picture. Here is illustration: [login to view URL] 5. Addon should also be capable of taking screen shot and that screen shot should be uploaded same way. For any clarification, feel free to discuss. I feel that coder should have absolute understanding of my requirements before he bids/starts this project. Thanking you for reviewing this project. Regards, Hemang Shah