SMS Code Filler does not collect, store, transmit, or sell personal data.

• The extension reads verification codes only from your own Mac's Messages database, through a locally installed helper.
• Codes are processed entirely on your device and are only inserted into the page you are visiting.
• No data is sent to the developer or to any third party. There is no telemetry, analytics, or remote server.
• The extension keeps a small local list of codes you have already used (in Firefox's extension storage) so it does not offer them again. You can clear this at any time with the "Clear all" button.
• The helper requires macOS Full Disk Access solely to read the Messages database; you can revoke that permission at any time in System Settings.