MetaMask is a crypto wallet that can be used in a web browser and on mobile devices to interact with the Ethereum blockchain. It allows you to run Ethereum Dapps (Decentralized Apps) right in your browser without running a full Ethereum node.
Guide to Setup Metamask for ETM/P
Please Backup your Secret Recovery Phrase, if your device breaks, is lost, stolen, or has data corruption, there is no other way to recover it. The Secret Recovery Phrase is the only way to recover your MetaMask accounts. Check more !