If we talk about the networks supported by the MetaMask wallet, you should be aware that basically it is designed to support Ethereum Mainnet and supports the ETH network by default. But, in case you want to buy, send, bridge, or stake crypto and tokens of any other network, you need to add that network manually on MetaMask.Yes! Don't worry, the process of doing is quite straightforward and just asks for a couple of easy actions. Let's say, you are seeking assistance to add Polygon to MetaMask , then all you need to do is, unlock your MetaMask Wallet and go to the "Accounts" menu. From there, choose the "Networks" option and further press "Add a network". Hereby, you'll be prompted to add the Polygon network detail manually. So, go through the information stated right below for Polygon Mainnet and fill it out where needed.READ MORE:-Users are advised to lock their wallets if they are not using them. So, we are here enlisting a couple of actions that you need to perform if you want to log out of MetaMask.