Chrome notification pop-up location

I use Google Chrome, which supports letting websites send notifications as brief pop-ups on your screen. This works fine, except they always appear in the bottom-right corner of my right-hand monitor. I have two monitors, and the one on the right is kind of secondary, and the far right of it is out of my field of vision. Does anyone know how to control where notification pop-ups appear? I'm running KDE on Ubuntu 16.04. Cheers Toby