If you’re still confused - a browser is a program on your computer which specialises in retrieving, presenting, and traversing information from the World Wide Web for your perusal.
The major web browsers are Windows Internet Explorer, Mozilla Firefox, Apple Safari, Google Chrome, and Opera.
A new Browser from Opera which looks like its pushing the boat out and not only acting as a browser but also as a server. Making file sharing and photo sharing for starters something which you control. By hosting elements on your own browser and not on a separate server you keep everything localised. It has a fun aspect called the “Fridge” enabling you to post messages on your friends desktops. Or the “Lounge” which allows you to host your own chat rooms with your friends.