I am having the blackout issue with Chrome and Firefox but only on my main display monitor; it's really funky. If I shutdown Display Fusion and open a Chrome page it works fine. If I launch display fusion and open a new page that one is blacked and weird but the old page looks fine still. It will also do it to Windows Photo Viewer. and I am on the most current build ( Pro via Steam)
The Funky Effect: surrounds the window in black, removes access to toolbars, navigation and anything else that is non-body content. I have to go to another window to close off the page; the page won't drag over anymore.