Soapstone

Leave a short message on any web page for whoever visits next, and see what other people have left. Soapstone has no content script and never touches the pages you browse. A count on the toolbar icon tells you when the page you're on has messages; click it to open the side panel, read them, and reply. Messages are stored in your own atproto repo (the protocol behind Bluesky), not in a database this extension controls. Sign in with a handle you already have (Soapstone never sees your password) and every message you write stays yours: delete it from the dashboard and it disappears everywhere, because the appview is just an index over public data, not the source of truth. Privacy: the extension never sends this page's URL to the server. It sends a SHA-256 hash of it, so pages with no messages, the overwhelming majority of anyone's browsing, leave nothing behind that can be read back. Full details: https://appview.soapstonemessages.eu/privacy Soapstone deliberately doesn't try to be everything: no anchoring to page elements yet, no algorithmic feed, no ads, no tracking.