i Have a Samsung smartphone with Firefox browser app as my default browser. I have been trying to remove or clear "Synced Tabs" fvrom my browser as they are no longer relevent, I have tried clearing resentting Firefox data from settings and well as logging in to my Mozilla Firefox account. The old Synced Tabs remain. It's late now and my eyes have become tired trying out various methods. Is there a more clear set of instructions available. Short of deleting everything including devices, I do not know what to do next?