Comment 23 for bug 295192

I can add some additional info, from using Mozilla (build ID 2002030508, OS X)
on my Titanium Powerbook LCD (Monitor 2, on the right) with an external monitor
attached and configured as the "main" screen (Monitor 1, on the left).

If I open, say, the Bookmarks window (or a browser window, for that matter), and
the left side of the window is within about 300 +/- pixels of the right-hand
edge of monitor 1, right-clicking a bookmark results in the pop-up menu
appearing on monitor 2. If I nudge the bookmarks window left, the pop-up opens
under the mouse pointer, where it should. The window does *not* extend in any
way into monitor 2.

This happens regardless of the size of the window -- it depends entirely on
where the *left* edge of the window is.

This bug is kind of annoying, because it gives the impression that the pop-up
isn't opening at all, until you realize that it's opening several inches and a
monitor away...

Let me know if I can add any more info.