Hello,
This is Shamzi here from Bangalore, India. Hope you're doing very well.
I happened to see this project posted here, and I think I can help you out with the Chrome Extension requirements you have. I have over 7 years of hands-on knowledge and deep understanding of the Extensions framework.. I have developed numerous chrome extensions, some for personal use, and others which are commercially available on Chrome Web store.
A brief summary of my skill-set:
I'm a passionate Web Applications and Browser extensions developer. In my 7+ years of work experience in this field, I have gained sound knowledge on various web technologies (Javascript, Ajax, jQuery, HTML5, CSS3, Python, Django, Node.js).
For reference, you can checkout my portfolio here: https://www.freelancer.com/u/kshamaz.
I went through the requirements you have mentioned, to send some modified data to your website via the chrome extension. This can be achieved via a chrome extension as the extension can talk to any page of your website without being blocked by the rules configured on your client's machines.
I would love to help you out in this extension, just ping me on chat and I can get started immediately.
Warm Regards,
Shamzi
(Bangalore, India)