New Cast functionality in Chrome
Beginning with Chrome 51, we’re rolling out a few changes to Cast functionality in Chrome:
1. Installing an extension is no longer required in order to find or
use your Chromecast device (Chromecast, Chromecast Audio, TV with
Chromecast built-in, or Chromecast built-in speaker) from Chrome.
Chromecast functionality is now built in as part of the Chrome browser
itself, so you no longer need to install anything in order to use your
Chromecast device from Chrome.
If you previously installed the Cast button, there’s no need to remove it. It will be silently removed from Chrome.
2. Chromecast functionality is available in the Chrome Tools 
menu.
Even if you haven'tpinned the Cast button to your toolbar, click the Chrome Tools menu in the top right corner of your Chrome browser window. Then click Cast…:
Chromecast functionality is also available when right clicking on a webpage in the Chrome browser (Control+click on Mac.)
Note: To access Chromecast functionality via the the Cast button in your Chrome toolbar, you must pin the Cast button to your Chrome toolbar.
3. You no longer need to set any Chromecast options for mirroring.
In previous versions of the Cast button, you could set options for
resolution, bitrate, quality, etc. when mirroring the contents of your
tab to your Chromecast device. These options have been removed, as the
system now automatically adjusts quality, frame rate and resolution
based upon your content and the quality of your network.
Here's more information on how to cast a tab or desktop/laptop content.
4. File feedback about Chromecast in Chrome from the Cast button.
File feedback about Chromecast in Chrome, report an issue or problem,
make a feature suggestion or just let us know how things are working
-- we’d love to hear from you!
To file feedback about Chromecast,
- Pin the Cast button to your Chrome toolbar.
- Right-click (Control+click on Mac) on the Cast button
located in the top right corner of your Chrome browser window.
- Click Report an issue and write your feedback.
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New Cast functionality in Chrome
Beginning with Chrome 51, we’re rolling out a few changes to Cast functionality in Chrome: 1. Installing an extension is no longer required in order to find or use your Chromecast device (Chromecast, Chromecast Audio, TV with Chromecast built-in, or ...New Cast functionality in Chrome
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Though not required, we recommend you pin the Cast button to your Chrome toolbar. This will allow for easier access to Cast functionality from any web page. To pin the Cast button to the Chrome toolbar, 1. In the upper right corner of Chrome browser, ...