Good job. I made a relative proposal yesterday, you may have seen it (?) or not: https://steemit.com/steem/@alexgr/steem-interface-proposal-follow-response-upvote-notifications
Having said that, I'm somewhat ideologically opposed to extensions for use on a website that deals with money for obvious security concerns but I don't mind its use as a proof-of-concept inspiration to get to our target of native integration faster.