How do I add mote extension to all managed Chrome browsers / devices in my organization?

Here's Google's advice on deploying an extension to an enterprise-managed domain:

https://support.google.com/chrome/a/answer/6306504?hl=en

Some users have also found this article helpful:

https://www.goguardian.com/blog/technology/how-to-push-a-chrome-extension-to-all-users-google-admin-console-tutorial/