This add-on works fully locally inside the browser and does not collect, transmit, sell, rent, or share user data.

It uses the bookmarks, tabs, history, and storage permissions only for user-initiated local features such as saving open tabs, finding and deleting duplicate bookmarks, removing empty folders, exporting bookmarks as HTML, and reviewing browsing history.

All accessed information stays on the user's device. No account, remote server, analytics service, telemetry, advertising network, or third-party tracking is used.

The Firefox build is adapted from an already published Chrome extension, with Firefox-specific packaging changes only. These changes include using Firefox-compatible background scripts and removing Chromium-only APIs that are not available in Firefox.