Build a browser extension

I'm hiring somebody to build a prototype browser extension. It needs to have at least Firefox and Chrome supported. Internet Explorer and Edge would be nice to have, but not required. The build tasks should support minification/obfuscation. If you can help with an updater, that's a plus (http endpoint that the browsers will check for updates). The software is a simple pull out feed with data based on websites. The data is there and we're really looking for somebody to help prototype it. We have designs, logos and branding already. I will be looking for YOU TO CONTACT ME! Freelancer seems to have a ton of automated bots. If you read this and contact me, start the message with "I read your message, and I'm interested!" Thank you for your time