Automatic focus handling? How do I turn it off?

[Ken Simpson <kens ActiveState com>]

I was told that gtk has a mechanism for automatically setting or removing
the focus on widgets in response to events such as keypresses. I think
this mechanism has been enabled somewhere inside Mozilla and is causing
all kinds of focus-related problems with Mozilla plugins.

Can anyone tell me where I can look in gtk to find this automatic focus
setting code?

Thanks,
Ken Simpson
Komodo Developer
ActiveState