A web browser is a software program that allows a user to locate, access, and display web pages. In common usage, a web browser is usually shortened to ȫrowser." Browsers are used primarily for displaying and accessing websites on the internet. Examples of web browsers are: Internet Explorer from Microsoft, Firefox from Mozilla, Google Chrome, Safari from Apple, and Opera.
Web usability is the ease of use of a website. Some broad goals of usability are the presentation of information and choices in a clear and concise way, a lack of ambiguity and the placement of important items in appropriate areas. Another important element of web usability is ensuring that the content works on various devices and browsers.