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Need help? Contact the Chromecast Support Team for assistance.

Google Cast extension

To make it easier to cast a tab from Chrome, we recommend you add the Cast button to your Chrome browser. Let's get started!

Install the Cast button for your Chrome browser

  1. Make sure you're using the latest version of Chrome by navigating to Settings > About Google Chrome and update your Chrome browser to the latest version, if necessary. If you're having trouble, here's how to update Chrome.
  2. Download the Cast button.
  3. Make sure your laptop/computer is connected to the same Wi-Fi network as your Chromecast device.
  4. Once installed, in the top right corner of your Chrome browser, you should see the Cast button Inactive cast extension .
  5. Start casting a tab!
  6. Please note:  Installing the Cast button is not required to cast content from Chrome.  The extension allows quick access to Cast functionality via a extension. Even if you don’t install the Cast button, you can cast
    1. From a Cast-enabled site: For sites like and, click the Cast icon Inactive cast extension  in the video player.
    2. From Chrome Setting menu: Navigate to the Chrome Settings menu More menu icon in the upper right corner of your browser > click "Cast.." > choose the device you want to cast to. 
    3. From the webpage: Right click on the webpage > click Cast  > choose the device you want to cast to. 
    4. From the Cast button: If you’ve installed the Cast button, click the Cast button in the Chrome toolbar (upper right corner) of your browser. 

Having trouble? Try these troubleshooting steps

Cast extension download fails or has issues
If one step doesn't work, try the next one in the list below:
  1. Try resetting the Chrome browser settings.
  2. Sign out, then sign back in to both the Chrome web store and Chrome browser.
  3. Reboot the computer and router.
  4. Uninstall and reinstall the Chrome browser.
Cast extension icon not appearing in browser

There are three possible reasons that the Cast icon on your Chrome browser may seem to disappear after the extension has been installed:

  1. The Cast icon is in the overflow area.  If you have multiple extensions on your browser, the Cast icon may be shown in the icon overflow area. Expand the extension icon area by clicking the Chrome Settings menu More menu icon in the upper-right hand corner of your browser.
  2. The Cast extension disappeared after resetting Chrome settings. You may have seen a prompt in Chrome asking you to reset their browser settings to factory default. Clicking Reset makes the Cast extension icon disappear. Re-enable the Cast extension by going Chromecast Setup page and clicking Add Cast Extension.
  3. The Cast icon was removed.  Re-enable the Cast extension by visiting the Chromecast Setup page and clicking Add Cast Extension.
  4. If the above reasons don't address the issue, try the following troubleshooting steps:
    • Make sure the Chrome browser is up to date. At a minimum, browser should be running Chrome 50.
    • Completely close and reopen the Chrome browser.
    • Try casting using another device (phone, tablet, computer).
Still need help? Check out the related questions below from our help forum. Note: Help is currently in English only. 

Elise is a Chromecast expert and author of this help page. Leave her feedback below about the page.

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