A browser extension that collects Facebook group posts from your own logged-in session, then lets you search and export them. Everything stays in your browser — nothing to install but the extension.
chrome://extensions and turn on Developer mode.That is the whole installation. Nothing else to install, nothing to run, no server and no terminal. The extension stores what it collects in your own browser.
Most people never need this. If you want collections from several machines in one database, with cross-group analysis, you can run the workspace yourself from the project repository and point the extension at it under Extension settings. Sending to a workspace is off by default.
Programmatic scrolling does not reliably make Facebook load more posts. Measured on a live group feed:
| Method | Result | |
|---|---|---|
| Real wheel events | height 5330 → 12762, posts 3 → 4 | paginates |
scrollTop = max |
no change, no new requests | no effect |
scrollBy ×12 |
height +7px | no effect |
An extension cannot dispatch trusted wheel events, so the collector works passively while you scroll rather than pretending to automate it. Its assisted-scroll mode measures whether posts actually arrived and stops when they did not.
document.cookie is never accessed.doc_id and query variables — never fb_dtsg, jazoest or lsd.127.0.0.1 and localhost. Collected posts never leave your machine.world: "MAIN" content scripts (Chrome 111+, Edge 111+).