Hi,
I noticed that if you press the Enter key on the last line in the current view in the Editor in Firefox, the Editor will not scroll into view. I guess that explanation is a bit unclear so a few steps:
1) Clear the editor (CTRL + A, DELETE)
2) Type in 'abc', press Enter
3) Press and hold Enter
You'll see that in IE, 'abc' will be moved off-screen (and the caret stays on screen), whereas in Firefox, 'abc' stays on screen.
The same behaviour is exhibited in Chrome.
Thanks!