MetaMask.io is the most popular cryptocurrency wallet in the world, where you can buy, store, send and swap cryptocurrencies like $CHZ.
MetaMask supports browser extension & mobile app, and this tutorial will instruct you how to install MetaMask wallet in your browser. For mobile install instruction please refer to this page by MetaMask official.
Go to https://metamask.io/download/ (available for Firefox, Chrome, iOS or Android). Download and install in your browser: