Browser Emulator

Hello, I need to be developed an broswer emulator. That browser will load the data from an external JSON (i already have it). This data json will contain: user agent, target url, proxy and cookies. The browser will load those informations, access the target url using the loaded proxy, user_agent and cookies and then will click in an button. The browser should be able to load and run the website javascripts and css (cache them). I also need to be able to add an black list that browser will not do requests to (example: images file).