After testing on the system I almost always run my games from, (FreeBSD 11 with Firefox and a Logitech mouse), this entire update is a bug. When scroll-wheel zooming, the map position changes arbitrarily and uselessly, and the position only rarely has any relationship to where the cursor is. If I hold alt and use the scroll wheel, it does seem to scroll, but when I release alt, it often either returns to the game launch page or reloads the existing page (I suspect this is a mouse gesture supported by Firefox?) Panning is jumpy and difficult to use. If I ever zoom out to where I can see the entire map, the random zoom movement is vastly worse when I zoom in... moving one click at a time from fully zoomed out until the map fills the screen results in insane map position jumps. It takes a full five seconds moving my scroll wheel at my max speed to get from fully zoomed out (10%) to fully zoomed in (250%). Try to go from zoomed out to in is even worse since if you're in the map area, but not actually on the map grid, the zoom does not function, so I need to chase the map to the top/left corner... but not all the way to the corner since the map isn't there either. "Legacy" alt-scroll wheel zoom has all of the above issues... zooming from outside the map grid doesn't work, the map jumps around randomly. If I right-click "too soon" (about a second) after zooming, I actually get the default browser right-click menu,. If I right-click a bit after that (about a further two seconds), there's no menu at all, and I still can't pan if I hold the right button. I need to wait about three seconds after zooming to be able to interact with the VTT in any meaningful way. If I have legacy mode on, during that settling period, if I alt-zoom again, it will take me back to the launch page or reload the current page.