How do I install MetaMask browser extension?

For working your way with MetaMask, there are two ways through which you can eventually use it. The first way is to get the MetaMask extension added to your browser and the other method is to add the MetaMask application to your mobile device. As you can easily guess from the title of this post, this write-up is going to be all about the MetaMask chrome extension and other extensions that can be added to your PC.