Problem with Hotmail on Chrome--present but not functioning

I have installed x-notifier 3.5.21 from the Chrome Web Store in both Chrome and Opera. On Opera Hotmail main account works: new mail signalled when arriving. On Chrome that same Hotmail account is either red or faded and does not poll for new mail or notify when new mail arrives. Why does the Chrome x-notifier work as designed on Opera, but not on Chrome ? 

I have worked around the problem by setting up forwarding from the secondary Hotmail and Yahoo accounts to the primary account for each. This was not necessary on Firefox. The port to Chrome is inferior to the original Firefox add on. On Chrome I needed to remove the secondary Hotmail account to restore functionality for the main account. This was not necessary on Opera.

Version 50.0.2661.102 m (64-bit)

Google Chrome is up to date.

X-notifier (for Gmail™,Hotmail,Yahoo,AOL...) 3.5.21 installed

Version : 37.0.2178.43 - Opera is up to date

Update stream:Stable

System:Windows 10 64-bit (WoW64)

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Description

Thanks to this extension you will be able to download and install extensions from Google Chrome Web Store directly in your Opera browser.

X-notifier (for Gmail™,Hotmail,Yahoo,AOL...) 3.5.21 installed from  https://chrome.google.com/webstore/search/x-notifier?hl=en-US