Step 1: Downloading and Installing Metamask. The first step in setting up the Metamask wallet is to visit the official website of Metamask. It can help you identify the essential instructions for downloading the wallet. In addition, you can also find a list of browsers that are compatible with the Metamask extension.Setup another user on the OS. Use a separate chrome profile within the same browser. Use a separate browser, such as Firefox. Or anything similar. If you don't mind the other user potentially having access to your account: In Metamask, click the colourful circle in the top right of the UI, and there will be a dropdown that says "Create account".