Unlike standard session cookies, an ARL typically lasts for months unless you manually log out of all devices. How to Get Your ARL Deezer HiFi Token
If you are using an ARL but can only download 128kbps MP3s, your account likely doesn't have a HiFi subscription. Deezer restricted FLAC access exclusively to paid tiers. Ensure your plan is "Premium" or higher. arl deezer hifi