First of all, open the extension and select the drop-down menu that says Main Ethereum Network.
It descends between the different pre-established networks; and select custom RPC.
And then enter the information in the form as it appears here:
RPC URL: https://http-testnet.hecochain.comarrow-up-right
ChainID: 256
Symbol: HT
Block Explorer: https://testnet.bscscan.comarrow-up-right
RPC URL: https://http-mainnet.hecochain.comarrow-up-right
ChainID: 128
Block Explorer: https://scan.hecochain.comarrow-up-right Congratulations, you already have the Huobi ECO Chain (HECO).
Last updated 4 years ago