Comment 34 for bug 1228250

I don't know if this should be included in this enhancement or I should create a
new one but it would be nice for the people who don't have a horizontal
scrolling mouse to have horizontal scrolling capabilities with the mouse. If
anyone has ever used Textpad, you might know what I'm talking about. In this
program when a horizontal scrollbar exists, it is possible to press and hold the
control key and use the vertical scroll on the mouse to scroll left and right.
So would it be possible to hold the ctrl key + up scroll to scroll left and ctrl
key + down to scroll right? I could envision just including the same option
Scroll a page left or right under the vertical scrolling area as well.