A new window will open after you click "Change password," asking you to input your current password as well as the new password you want to choose. In the "Current password" field, enter your current password, and in the "New password" field, enter the new password you want to use. Make certain How to change MetaMask password that your new password How to change MetaMask password is secure and consists How to change MetaMask password of a combination of uppercase, lowercase, digits, and special characters.Millions of people around the world use the well-known bitcoin wallet and decentralized application (dApp) browser plugin MetaMask.