Chrome / Firefox plugin/extention building

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
I'm looking for a developer who can built an Chrome and Firefox extention for a specific online profession. It needs to work with cookies and extract data from existing Javascript on the website.

For example:
Building an Chrome plugin who notifies the user if a certain script is running on the website (let's take Google Analytics) and gives the user the possiblity to see if there's a specific script running that can be altered (like for example a pageview or a event clicking).

I'm experienced with html, css, front-end development so I need help with cookies reading/writing and altering. It's a bit like the "EDIT THIS COOKIE"-plugin that's already in the Chrome store we need to alter.

Are you able do make something like this based on an actual briefing I will make (with wireframes and good description of what i expect).

It's a project with an initial budget; but can also be done hour-based after the basics are finished.

Skills required:
Firefox, Google Chrome, HTML, Javascript, jQuery / Prototype
About the employer:
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