Killcurly without JS or SignOut:
1. Open a new tab.
3. Go to https://accounts.google.com/Logout?
4. Hit the "i" to the left of the URL.
5. Click "Cookies and site data".
6. Click "Manage on-device site data".
7. Click the Trash icon where it says "google.com".

Credits:
https://github.com/SIMONHSCH
