xFog collects no data. None.
xFog is a browser extension that runs only on x.com and twitter.com. It hides parts of those pages until you reveal them by pressing esc. That is all it does.
One value, on your own device: whether you toggled the extension on or off. It is kept in your browser's local extension storage, never leaves your machine, and is deleted when you uninstall the extension.
xFog makes no network requests. It has no servers, no analytics, no trackers, no cookies, no accounts. It does not read, collect, transmit, sell, or share your browsing activity, your posts, your messages, or anything else. The source code is public, so you can verify all of this.
If this policy ever changes, the new version will be published at this address.
@jpfraneto on X, or jpfraneto@gmail.com.
last updated: july 29, 2026