Create Browser Extensions from existing Bookmarklet

We have an existing bookmarklet, when clicked, shows data from our main web application directly within the webpage. This bookmarklet also allows for certain web application actions to be taken directly through the bookmarklet. We want this bookmarklet to be ported as Chrome and Firefox extensions with a little bit more functionality. When someone is on a website that is in our system, the extension should either light up or, preferable, automatically pop-up the functionality we have with the current bookmarklet. I will provide more information and screenshots when I receive offers for the job. We are looking for someone with experience developing extensions. The person would preferably be fluent in English (and from the US) as we'd be interested in offering more projects if we're satisfied.