This browser extension rewrites Twitter.com "reply" buttons to open a browser window to your own site, allowing you to post a reply from your site.
Before it can be used, you need to set the URL to redirect to in the IndieWeb Reply extension preferences. This URL is a web action URL which should provide a UI for posting a new note.
You can use {url}
in your URL (perhaps in a query parameter) and it will be replaced by the URL of the tweet you’re replying to.
On twitter.com, click "Reply" on a tweet:
A window opens on your own domain so you can reply from your site