The widget code still opens context menus on right-click when in the background, but correctly ignores left click, leaving a menu you can't interact with. Mostly a nuisance, but annoying with the QTE.

I'm beginning to think we can't trap this without undoing issue 88. Neither inactiveWindowAcceptsEvent nor WindowAcceptsEvent in nsChildView.mm get this click before the context menu is opened.

We have to remove the short-circuit we have in nsToolkit::RegisterForAllProcessMouseEvents() but this might cause other problems. I think this is better off left until after the 24 switch over.