Automatic click on a pop up button

问题

I've the following button that appear suddenly on a window.

<span class="a b c" id="PulsingButton_6_label" data-dojo-attach-point="containerNode">Accept Waiting Chat</span>

Would be possible to intercept it and automatically click on it? I was thinking at something in JS or a greasemonkey extension.

Ideas?

来源：https://stackoverflow.com/questions/42553882/automatic-click-on-a-pop-up-button