I am using Chrome Ver# 65.6.5 but ran into a problem. After using for a while the Speed Dial reverts to Google New Page and to get Speed Dial back I have to open extensions and prees the Reload button. Is this a bug or is there a fix?

What about reinstall the addon? 

Just create backup of your data before that.

I have done that, can't figure out why the extension unmounts. No new extensions, but this one was updated I think.

Do you still have this problem?

Never had this until this version, driving me nuts.

When does it hapeen? After each restart? Or suddenly during browsing?

What is your OS and Chrome version?

Usually happens when I come back to my iMac after being out for a few hours. I am using Chrome version 65.6.5 and Mac OS High Sierra.

I'm also mac user and don't have such problem. Do you see any Chrome message before the extension turns off? 

Does you Mac goes to Sleep mode or Energy Saving mode?

Yes the Mac goes into sleep mode, but as I said never had a problem before. And no Chrome message.