According to Odaily, MetaMask has announced on platform X that its Fiat Value Toggle feature is now available for mobile devices. By default, this feature is turned off, meaning it will not display the fiat currency value on the testnet. However, users can enable it in the settings to display the fiat currency value again. MetaMask has issued a warning to its users to be cautious of scams on the testnet, reminding them that the cryptocurrency on the testnet is not real money.