Installing of MetaMask Chrome extension is a simple procedure that can be completed in just five steps. To know the steps, follow the guide below:

1. The primary step is to go on the official site of MetaMask.
2. Now look for the downloading links of this wallet.
3. Once you find the link for MetaMask Chrome Extension, click the ‘Install’ button.
4. Now the page of Chrome Web Store would be opened.
5. Press ‘Download’.
6. A pop-up screen will be displayed to you. And it will take the confirmation whether you would like to add MetaMask as your Chrome Extension. 
7. To give confirmation press ‘Yes’.
8. Wait a few moments for the download and installation to be completed.  After this, the extension would be ready to use and if you want to pin your MetaMask Chrome Extension to your browser toolbar then you can do so by pressing the puzzle-shaped button in the top right corner of the screen and then tapping the PIN button. As a result, your extension would be pinned to your toolbar. After this, you can create a new account on the wallet by following the instructions on the screen.