Browser plugin - Links sharing to social networks

I'm looking for experienced browser plugins (IE, FF and Chrome) developer to continue with the prototype for our links sharing plugin. The existing plugins is written in PHP, JS and is integrated with 3rd party API such facebook and our on system API. For starter we need to set the prototype code as browser plugin for all 3 browsers. Addition information will be given on our chat. Please bid only if you made browser plugins in the past and can show proof you can use any plugin framework you wish payment via escrow freelancer.com Best of luck.