[@Veltman] I had the same cookie issue when I first tried it. The trick is to make sure the Setup Wizard runs on first launch — it auto-detects your browser and sets up cookie access so YouTube downloads work right away.
If you skipped that, go to Settings and check the Browser Cookies section. Make sure it shows a detected browser (Chrome, Firefox, Edge, etc.). If nothing shows up, just open YouTube in your browser, make sure you’re logged in, then restart GrabTube. It picks up the cookies automatically.
There’s also a Cobalt API fallback toggle in Settings that works as a last resort if local cookies fail.
The download flow is just paste URL and click Grab. The “complicated” part is really YouTube being aggressive with blocking — every downloader has this problem now. Since v1.0.55 it automatically cycles through all your installed browsers if one fails, so worth updating if you’re on an older version.