Netflix Error M7121-1331

If you see the error code M7121-1331 on your computer, it usually means there's a problem with your browser. To solve the problem, follow the troubleshooting steps below.

Use a supported browser

To watch Netflix on a Windows or Mac computer, use one of the following browser versions. Other versions may still work, but we can't guarantee the Netflix experience on them.


Windows version

Mac version

Chrome OS version


Version 64 or later on Windows 7 or later

OS X 10.9 (Mavericks) or later


Firefox (official Mozilla versions)

Version 59 or later on Windows 7 or later

OS X 10.10 (Yosemite) or later

Internet Explorer

Version 11 or later on Windows 8.1 or later

OS X 10.10 (Yosemite) or later


Because Linux has so many configurations, Netflix Customer Service isn't able to troubleshoot Linux devices.

Microsoft Edge

Windows 10


Version 47 or later on Windows 7 or later

Mac OS X 10.10 (Yosemite) or later


Mac OS X 10.10 (Yosemite) or later on 2012 models or later and select 2011 models

Turn off Chrome extensions

If you use Chrome, you can turn off unnecessary add-ons.

  1. In the address bar, enter chrome://extensions.

  2. Turn off any extensions that are turned on.

    Extensions listed under Chrome Apps don't need to be turned off.
  3. Try Netflix again.

If these steps solve the problem, try turning on your extensions one by one to determine which one is preventing Netflix from working properly.

Reinstall Google Chrome

  1. To uninstall the Chrome browser, follow the steps from Google Chrome Help.

  2. After Chrome is uninstalled, install Google Chrome again.

  3. Once Chrome is installed, try Netflix again.