trezor-wallet/public/data/appConfig.json

{
    "networks": [
        {
            "name": "Ethereum",
            "symbol": "ETH",
            "shortcut": "eth",
            "bip44": "m/44'/60'/0'/0",
            "chainId": 1,
            "defaultGasPrice": 64,
            "defaultGasLimit": 21000,
            "defaultGasLimitTokens": 200000,
            "tokens": "./data/ethereumTokens.json",
            "web3": [
                "wss://eth2.trezor.io/geth"
            ],
            "explorer": {
                "tx": "https://etherscan.io/tx/",
                "address": "https://etherscan.io/address/"
            }
        },
        {
            "name": "Ethereum Classic",
            "symbol": "ETC",
            "shortcut": "etc",
            "chainId": 61,
            "bip44": "m/44'/61'/0'/0",
            "defaultGasPrice": 64,
            "defaultGasLimit": 21000,
            "defaultGasLimitTokens": 200000,
            "tokens": "./data/ethereumClassicTokens.json",
            "web3": [
                "wss://etc2.trezor.io/geth"
            ],
            "explorer": {
                "tx": "https://gastracker.io/tx/",
                "address": "https://gastracker.io/addr/"
            }
        },
        { 
            "name": "Ethereum Ropsten",
            "symbol": "tROP",
            "shortcut": "trop",
            "chainId": 3,
            "bip44": "m/44'/60'/0'/0",
            "defaultGasPrice": 64,
            "defaultGasLimit": 21000,
            "defaultGasLimitTokens": 200000,
            "tokens": "./data/ropstenTokens.json",
            "web3": [
                "wss://ropsten1.trezor.io/geth"
            ],
            "explorer": {
                "tx": "https://ropsten.etherscan.io/tx/",
                "address": "https://ropsten.etherscan.io/address/"
            }
        }
    ],

    "fiatValueTickers": [
        { 
            "network": "eth",
            "url": "https://api.coingecko.com/api/v3/coins/ethereum"
        },
        { 
            "network": "etc",
            "url": "https://api.coingecko.com/api/v3/coins/ethereum-classic"
        }
    ],

    "supportedBrowsers": {
        "chrome": {
            "version": 59,
            "download": "https://www.google.com/chrome/",
            "update": "https://support.google.com/chrome/answer/95414"
        },
        "firefox": {
            "version": 54,
            "download": "https://www.mozilla.org/en-US/firefox/new/",
            "update": "https://support.mozilla.org/en-US/kb/update-firefox-latest-version"
        }
    }

}