Browser Extension for Chrome, Firefox, and Safari

I have a Drupal website which is a micro-blogging website. I need someone to create browser extensions thats work in Chrome, Firefox and Safari. This extension should show the latest posts in the website and give the user the ability to login and post his own posts. The website has the option of showing the followers or all users posts, I need this option to be in the extension also. I will make the graphic design for the extension but you have to implement your programming in my design.. Please think very good before putting your bid and please put a reasonable bid. Thanks...