Just click “Add to Chrome” and then “Add extension” in the next dialogue. To find out how to access Google Hangouts from Chrome with the extension and not the browser version, first of all go to the Apps webstore and get the Hangouts plugin - it is free of charge.
After adding the Hangouts extension, it won't be necessary to use the browser, you can keep it closed if you wish, but it must be present on the PC.
You need the Google Chrome browser installed on the desktop computer or laptop. Installing Hangouts extension for Google Chrome browser This article is dedicated to what is Google Hangouts plugin for Chrome and how to install it and work with it on a desktop PC. For those ones wishing to use this service on a computer or laptop with their large screens, there are two options: the web version available in a browser and the extension for Google Chrome browser. However, there is one point which should be clarified: unlike other established instant messengers (Skype, Viber or Telegram), Google Hangouts does not have a separate desktop version. The service is cross-platform - it works on mobile devices with Android, on iPhones/iPads and on the desktop PC with Windows or Mac. There is no need to create any separate accounts to use it: being one of Google's products, Hangouts messenger is automatically registered to the Gmail account.
Google Hangouts provides the main options: its users can exchange free instant text messages, make calls and video calls for free to other clients of this service and call mobile and landline phone numbers.
Taking into consideration the power of Google, Hangouts became a really strong player on the market. It was included into the predefined set of apps for many Android smartphones and tablets. Hangouts - a free instant messenger with VoIP support created by the giant Google and belonging to its line of product and services. Voice calls and video conversations with Hangouts extension for Chrome