I cannot log-out of Gmail or Google.
I cannot access the drop-down menu in Gmail to sign-out.
The icons in the upper right of the screen (grid, alert bell, account icon) move or disappear when clicked but do not activate their drop-down menus or actions. It's very odd. This began two weeks ago before I upgraded to Sierra and is continuing now.
I know I can open another browser and log out from there. I don't want to do that every time, so please do not suggest "work-arounds" of that sort. I'm sure this can be fixed properly so that OS X works seamlessly with popular email services.
This is obviously a problem with Safari (since I can log in and out easily with Firefox and Opera), so I am hoping to get a real, Mac/OS X-based permanent fix for this. Many thanks.
Using Safari 10.0 OS X Sierra 10.12 on a MacBook Pro 13" 2.9 GHz Intel Core i7
Screenshots showing what happens when the icons are clicked - they switch positions or disappear entirely:
MacBook Pro (13-inch Mid 2012), macOS Sierra (10.12), 2.9 GHz Intel Core 17