I've looked through my settings and cannot see the box to click on that turns off getting those double black box things, ie. the redboxes. I get one black box and two red boxes simultaneously and the red ones block my cursor and scroll bar.
So how do I opt out of those?
Everytime a black box pops up, so does two red boxes that duplicate the black box. The redboxes are stacked on top of one another just above and to the right of the black box in the very top right corner of the page. Sometimes they stay for a long unless I click the little x in the corner to make each one go away. With all three boxes it totally covers up all the check links in the red bar and gray bar underneath in the right top corner. So sometimes they have to be clicked off on to scroll or click a link. Sometimes they will disappear quickly and sometimes they stay until clicked off.
I'd rather get the black box only and have the red boxes totally eliminated.
It's caused by some Chrome for Mac bullshit as Chrome has abolished notification controls from their settings.