Toolbar Developer Needed To Clone A Toolbar

I'm looking to create a browser addon or toolbar that users can download to Firefox and Internet Explorer & Chrome. It absolutely must function perfectly in both and update along with each browser. I will give you some examples that I want to clone. The toolbar - once the user downloads, must be able to serve up pop-ups or pop-unders, with specific categories and keywords, etc... I should be able to control everything from my end once a user downloads the widget - frequency of ad, type of ad, etc... You should be able to design a high quality widget that integrates with each browser, that is light, and doesn't slow down the user's computer... and with feeds specific to the content I want. The widget must update daily with accurate information. You must have good ratings - Please send questions or comments. I'm looking to hire quickly.