Simply put, Metamask is 'an ethereum in your browser'. This means it is an extension or plug-in that is installed in a browser. No download is needed. Like other crypto wallets, Metamask allows user to transfer assets from the wallet to the trading platform. It is also a convenient wallet that allows users to store and transact with ethereum and ethereum based tokens like erc-20.
It is very easy to install matamask. Installing is as simple as going to the chrome official extension site, click on matamask and choose either import wallet or create wallet. Then create a strong password and keep it safe.
Features of Metamask
1. It is multilingual
2. The wallet is HD in nature
3. It has inbuilt exchange facility