I see some users here negatively commenting on the fact that this requires installation of the "MetaMask" browser extension.<p>If you haven't heard of MetaMask before, I'd highly recommend checking out their website. MetaMask is a bridge from the Ethereum network to the browser. It uses a library called "web3.js".<p>FYI, you can also download and install the Brave browser, which now has MetaMask built-in by default.<p><a href="https://metamask.io/" rel="nofollow">https://metamask.io/</a><p><a href="https://github.com/ethereum/web3.js/" rel="nofollow">https://github.com/ethereum/web3.js/</a><p><a href="https://brave.com/" rel="nofollow">https://brave.com/</a>