Loudness doesn't collect, keep or send any personal data.

• It changes the sound of the tab you open it on, on your device. Sound is never recorded, saved or sent anywhere.
• To list the tabs that are playing, it reads the titles and addresses of your open tabs. They stay on your device.
• Your settings are saved in Firefox's extension storage and sync with your Firefox account if you use Firefox Sync. If you turn on "Remember volume for each site", those levels stay on this device only.
• No analytics, ads, accounts or tracking. Loudness makes no network requests.