Enable Adobe Flash Player for use in the Google Chrome web browser.

from: https://helpx.adobe.com/flash-player/kb/enabling-flash-player-chrome.html

Mac OS

In the address bar, type chrome://settings/content.

Type chrome://settings/content in the Chrome address bar


On the Content settings screen, find the Flash Player listing. Check the status.

The Content settings screen


Select Allow sites to run Flash, and then click Done.

The Flash section of the Content settings screen


To manage Flash Player settings by site, click Manage exceptions.

Click Manage exceptions to manage Flash Player settings on a per-site basis


On the Flash exceptions screen, enter the website domain and then choose Allow. When finished adding sites, click Done.

The Flash exceptions screen


Close the Content settings screen.

Windows

In the address bar, type chrome://settings/content.

Type chrome://settings/content in the address bar


On the Content settings screen, find the Flash Player listing. Check the status.

The Content settings screen


Select Allow sites to run Flash, and then click Done.

The Flash section of the Content settings screen


To manage Flash Player settings by site, click Manage exceptions.

Click Manage exceptions to manage Flash Player settings on a per-site basis


On the Flash exceptions screen, enter the website domain and then choose Allow.  When finished adding sites, click Done.

The Flash exceptions screen


Close the Content settings screen.