[Bug] Frequently Opening/Closing & Changing URL hidden browser window - only in Chrome, not FF

Last week I switched from FF to Chrome (fresh install - no legacy data//settings).  I love SpeedDial but in Chrome it ALWAYS opens and closes (seconds later) a window.  Every few seconds, it closes one then opens a new. The URL of the window can be seen by hovering over the toolbar icon. I can right-click and close it manually but seconds later a new on will open anyway. It can be brough it to the foreground but ONLY when the current URL is... chrome-extension://llaficoajjainaijghjlofdfmbjpebpa/options.html   ... when the URL is something else, it will not open into foreground. Often URL it shows is not even one that is open anywhere. Just one from my SpeedDial. I suspect the problem is an interaction with SpeedDial.