SWT, XULrunner, OS X and mouse hover events

Hi all,

We have an Eclipse SWT (http://www.eclipse.org/swt/) application that makes=
 use of several SWT Browser controls, backed by XULrunner (https://develope=
r.mozilla.org/en/docs/XULRunner). We are using SWT 4.2 and XULrunner 10.0.4=
esr (the latest release that is supported by SWT).

We are experiencing an issue only on OS X (we have tried every variant of L=
inux and Windows we can reasonably get our hands on). The issue is that wit=
hin the browser window, mouse over and exit events are not triggered unless=
 the element is clicked. For example, we have some content that uses Twitte=
r Bootstrap=92s tooltips (http://twitter.github.com/bootstrap/javascript.ht=
ml#tooltips) =96 on Windows and Linux these function as expected, but on OS=
 X the popups do not appear until the button they are on is clicked, and do=
 not disappear again until they are clicked again.

There is an open bug with SWT for this (https://bugs.eclipse.org/bugs/show_=
bug.cgi?id=3D246830) which references an Apple issue, but unfortunately we =
can=92t seem to get access to that issue to see its status.

I have created this gist which minimally reproduces the issue: https://gist=
.github.com/4665145 (see notes at bottom for configuration and usage).

First of all, we were wondering if anyone has also experienced this issue a=
nd found a way to fix it. We were also wondering if anyone is able to provi=
de a workaround for this issue. I have started to formulate something aroun=
d using SWT=92s mouse listeners to track the cursor and trigger the events =
manually but have not made much progress with such an approach.

Any input or suggestions would be very much appreciated.

Chris