By default, safari browser comes in OS X but still if you want to download chrome on your system then this instruction page will help you out. Chrome browser is quite fast and browsing experience is spontaneous as compare to other browser. In order to download Chrome on your Mac computer visit google.com/chrome and follow the below mentioned steps
Note: Make sure you have 350MB of free disk space and Mac OS X 10.6 or later.
Steps 1: Firstly, you need to download the installer file from the website. Wait till the download process finish. File with name "Google Chrome.dmg." will be downloaded in the system. Now open the file.
Step 2: A new window will prompt on your screen. Find the Chrome icon. Drag the icon Application folder. Now, all homepage settings and browser history will be imported.
Step 3: You need to drag the Google Chrome disk image to the Eject icon. Open the bowser and type address of website which you want to open.