The trading process of MetaMask Extension is simple, all the users have to keep in mind to trade only those ERC-20 tokens that it supports. A few examples of these tokens are Binance USD (BUSD), HEX, Tether USD (USDT), DAI Stablecoin (DAI), and Bitfinex LEO (LEO). Do not think that it is the complete list of tokens they were just some examples. https://sites.google.com/metamaklog.com/metamask-chrom/home https://sites.google.com/metamaklog.com/metamaskextension/home