Yes. On win 7, html help control 6.1, the horizontal scroll bar is still put in or on top of the box, but it is thinner so it only cuts off half of the bottom line instead of hiding it completely. There is no longer a vertical scroll bar, which means one can only expose the rest of the bottom line by maximizing the window and shrinking the type size.

This is no an issue for me now because I recently got a 27' monitor with 2560x1440 resolution, so with full screen and still readable type, I can see even the long lines discussed here without a scrollbar. But this will not be true for most.  On a small enough screen, I might need a magnifier.

I checked and Internet Explorer works like FireFox, adding the scrollbar beneath the box (or expanding the box to accommodate it).

I just confirmed that the start menu shortcut does the same as double clicking python34/Doc/python34a3.chm. Same behavior. The icon is question mark partly over page.