Can you please reset my Firefox devices on my windows 10 PC.
I have a Samsung tablet which works fine and a Windows 10 PC, which has been duplicated 4 times and does not work
I'd suggest phoning helpdesk. the hold will be worth it and they have capabilties to reset all your devices without using up your device-change allowance.
Note be careful with browsers that might have "clear third-party cookies when closed" or something like that enabled by default else you'll be upto your 5 devices again in no-time.
TiVo upscaling output