Sonic Arc — Audio Booster & EQ is a local-first Firefox extension. It processes audio from the current web page locally on the user’s device to provide volume boost, equalizer, sound profiles, now-playing information, and optional local recording.

Sonic Arc does not collect, transmit, sell, or share personal data, technical data, page content, browsing activity, audio, recordings, settings, hostnames, or telemetry with Outseen Digital or third parties. The extension has no account system, analytics, advertising, remote configuration service, or developer upload service.

Settings and optional site rules are stored locally in Firefox extension storage. A WebM recording is created only after the user explicitly starts recording; it is saved through Firefox Downloads and is not uploaded. Sonic Arc does not request or use microphone permission.

Users can disable the extension, remove saved site rules, clear local settings, delete downloaded recordings, or uninstall the add-on at any time.

Developer: Outseen Digital