756305 - [Mac] XUL panel freezes when you remove the panel

Status: UNCONFIRMED

(Core :: XUL, defect)

Description

[Thaddee Tyl [:espadrine]]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/15.0 Firefox/15.0a1
Build ID: 20120513040218

Steps to reproduce:

The following code:

    someXulPanel.parentNode.removeChild(someXulPanel);

when run on Mac, does not remove the panel. It does on Linux and Windows.
As a result, we have to add the following:

    someXulPanel.hidePopup();

but we shouldn't have to. Indeed, removing the panel (without hidePopup()-ing)
causes the panel to be frozen, which is a very bad experience.


Actual results:

The XUL Panel gets frozen.


Expected results:

The XUL Panel should be dismissed.