Not sure of how exactly to trigger this bug, but recently I noticed that the menu stop opening when I hover with the mouse. (usually it does, and I can access the sub-menus).

It looks like this happens after I start playing a live game, but I'm not 100% sure.

Here is a screenshot of some game, with debug console opened

A workaround is to reload the page, then everything is fine for a while but it usually crashes again at some point.

Try using expand/collapse tool 

On lastest version of FireFox, same bug. The expand/collapse tool just refreshed the page, and did nothing.

They made the menus not open on purpose during a live game so you couldn't click something and be sent away from live chess. 

Working for me again.

@redscale, then why did they show the icons?

There was an issue with Firefox and the navigation that should have been fixed.  Can you let me know if you are still having the issue.

Ok, I'll tell you if I come across it again

I have had a heck of a time access this page. I see the notifications, when I click on them it says :

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