This extension does not collect, store, or transmit any personal data.

All preferences (which toggles are on/off) are stored locally in your
browser via the standard browser.storage.sync API. This data is synced
only between your own browser installations via your browser account
(Firefox Sync / Chrome Sync) and never sent to the developer or any
third party.

The extension only runs on facebook.com pages and makes no network
requests of its own.