MetaMask provides a range of advanced settings that allow users to customize their experience and tailor the wallet to their specific needs. In this guide, we'll explore the advanced settings available in MetaMask and provide step-by-step instructions on how to configure them.

Accessing Advanced Settings

To access the advanced settings in MetaMask, follow these steps:

  1. Open MetaMask: Launch the MetaMask browser extension or mobile app.
  2. Click on the Three-Dot Menu: Click on the three-dot menu icon in the top-right corner of the MetaMask interface.
  3. Select "Advanced": Click on "Advanced" from the dropdown menu.

Advanced Settings Options

The advanced settings page in MetaMask offers the following options:

  • Networks: Configure custom networks, including testnets and private networks.
  • Gas Settings: Adjust gas prices and limits for transactions.
  • Token Detection: Enable or disable token detection for specific networks.
  • Contract Interaction: Configure settings for interacting with smart contracts.
  • Debug Tracing: Enable debug tracing for troubleshooting purposes.

Configuring Custom Networks

To configure a custom network in MetaMask, follow these steps:

  1. Click on "Networks": Click on the "Networks" tab in the advanced settings page.
  2. Click on "Add Network": Click on the "Add Network" button.
  3. Enter Network Details: Enter the network name, RPC URL, chain ID, and currency symbol.
  4. Save Network: Click "Save" to add the custom network.

Sample Code for Interacting with Custom Networks

Below is a sample code snippet demonstrating how to interact with a custom network using MetaMask:


const customNetwork = {
  name: 'My Custom Network',
  rpcUrl: 'https://my-custom-network.com/rpc',
  chainId: 12345,
  currencySymbol: 'MYC'
};

// Add custom network to MetaMask
ethereum.request({
  method: 'wallet_addEthereumChain',
  params: [customNetwork]
});

// Switch to custom network
ethereum.request({
  method: 'wallet_switchEthereumChain',
  params: [{ chainId: customNetwork.chainId }]
});

Configuring Gas Settings

To configure gas settings in MetaMask, follow these steps:

  1. Click on "Gas Settings": Click on the "Gas Settings" tab in the advanced settings page.
  2. Adjust Gas Price: Adjust the gas price in Gwei.
  3. Adjust Gas Limit: Adjust the gas limit for transactions.
  4. Save Changes: Click "Save" to apply the changes.

Sample Code for Adjusting Gas Settings

Below is a sample code snippet demonstrating how to adjust gas settings using MetaMask:


// Set gas price to 20 Gwei
ethereum.request({
  method: 'wallet_setGasPrice',
  params: ['20']
});

// Set gas limit to 50000
ethereum.request({
  method: 'wallet_setGasLimit',
  params: ['50000']
});

Conclusion

MetaMask's advanced settings provide a range of customization options for users who require more control over their wallet experience. By configuring custom networks, gas settings, and other advanced options, users can tailor MetaMask to their specific needs and use cases.