Re-enable OpenVoice for Google Calendar in Chrome
If organizers use the OpenVoice for Google Calendar extension on the Chrome browser, new security features that will be rolled out for Google Calendar on November 16, 2017 will cause the extension to be disabled. This article provides the steps to re-enable the extension. You can review the Google post about the changes.
If you do not re-enable, the applications will not appear in Google Calendar in the Chrome browser. You can re-enable at any time. If you choose the Remove from Chrome option, the applications are removed. You would need to
re-install the extensions to gain access again.