I found I could only rotate for about 90 degrees plus/minus. I tried to circumvent the problem by dragging my cursor outside of the window and bringing it back in on the opposite side so I could continue rotating. Strangely, the game sensed I had come in from the opposite side and reset the rotation to the exact same 90 degrees. It's purposefully attempting to be infuriating.
On FF it seems sort of fiddly. It should capture (or ask you if it can) any time you click in the window, but in practice sometimes I have to click twice, sometimes I have to right-click and then cancel the RMB menu, etc. YMMV...
