500981 - the main window blocks during the custom sound is playing (new mails)

Status: VERIFIED DUPLICATE of bug 250186

(Thunderbird :: Mail Window Front End, defect)

Description

[yugiohjcj]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; fr; rv:1.9.0.10) Gecko/2009042315 Firefox/3.0.10
Build Identifier: version 2.0.0.21 (20090302)

When a new email is incoming, the custom sound is played.
During the playing, the user is unable to interact with the main window because it is blocked.
When the sound playing is completed, the main window isn't blocked and the user can interact with the window.

Reproducible: Always

Steps to Reproduce:
1. Open Mozilla Thunderbird
2. Go to Edition>Preferences
3. Choose to play a custom sound when a new email
4. Stand a new email
5. Try to interact with the window during the sound is playing
Actual Results:  
The window is blocked

Expected Results:  
The window shouldn't be blocked (don't want to stand until the sound playing is completed)