Most browsers today are speedier, safer and more capable than their early iterations. These browsers offer a simplified way of downloading and installing any extension just by navigating to the respective web store. Chrome is no exception to this rule. The browser allows a user to go to the Web Store and install an app by hitting the ‘Install’ button. In seconds, the download begins, and the user has just to authorize the plugin for completing the installation.
That said, there are instances when Chrome Web Store might express its inability to install the app or extension by flashing an error message on your Windows 10/8 computer screen:
This application is not supported on this computer. Installation has been disabled. The following problems are detected: NPAPI plugin is required by this app.
Beginning January 2014, Google Chrome blocked NPAPI plug-ins by default on the Stable channel. This is because, NPAPI’s architecture had become a leading cause of hangs, crashes, security incidents, and code complexity. As a result of this, Chrome phased out NPAPI support. There is, however, a workaround for this problem.
This application is not supported in Chrome
You can disable the This application is not supported in Chrome error. To do this, create a new shortcut for Chrome on the desktop.
Next, right-click on it, select ‘Properties’, click on ‘Compatibility’ tab under ‘Compatibility mode‘, select ‘Run this program in compatibility mode for Windows 7 and click on ‘OK’ to apply the changes.
Then, launch Chrome using the newly created shortcut, navigate to the Web Store and install that extension. Now, remove the shortcut you just created and in the regular shortcut properties dialog under the Compatibility tab, ensure run this program in compatibility mode is unmarked.
Hope this works for you.