[jQuery] Superfish Problem in Firefox

[jQuery] Superfish Problem in Firefox


This image outlines the situation pretty well:
http://farm4.static.flickr.com/3260/2694933261_597b4bb333_o.jpg
Superfish is configured like this:
$('ul#homeNavMenu').supersubs(
    { minWidth: 9, maxWidth: 27, extraWidth: 1 }).superfish(
    { delay: 200, dropShadows: false, disableHI: true, animation:
{visible: 'show'} });
The problem is, if the mouse reaches the spot marked with the red X
inside the text field, the menu stays visible in Firefox 3 (Windows).
In IE7 the menu is hidden as expected when the mouse enters the area
of the text field - not even click-activating the text field force the
menu to hide. This only happens for the text field and it does not
matter wether the text field has the input focus or not.
Any suggestions?