You just bought Nexus 4 and you don't know anything about Android operating system, so I will guide you through literally first steps on this great phone.
This is how you add your favorite websites shortcut to your iPad or iPhone running iOS 7. It's a really useful feature if you are accessing some webpages frequently.
Let's install a YouTube download extension that will enable you to download YouTube movies. You will also learn how to install a Google Chrome extension that isn't in the Google Chrome store.