486876 - no mouse input if alert/prompt/confirm/authorization window shows while dragging a tab

Status: VERIFIED DUPLICATE of bug 100180

(Firefox :: General, defect)

Description

[Nenad Ognjanovic]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8 (.NET CLR 3.5.30729)

If a authorization or javascript alert/prompt/confirm window pops up while you're dragging a tab in tab-bar, you won't be able to perform a click in that window. Keyboard input works fine.

You can use this code to test this, just start dragging a tab and confirm will pop-up in 2 seconds.

<script language="JavaScript">
setTimeout(doIt,2000);
function doIt() { confirm("Blah"); }
</script>

Reproducible: Always

Steps to Reproduce:
1. start dragging a tab before alert/prompt/confirm/authorization window shows
Actual Results:  
unable to click anything

Expected Results:  
perform a click

tested on Windows Vista 64-bit with Firefox 3.0.8 and Windows XP 32-bit with Firefox 3.0.6

Comment 1

[Tyler Downer [He/Him]]

Can you please give a reduced testcase that shows this in Safe Mode or a new profile? 
http://developer.mozilla.org/en/Reducing_testcases
http://support.mozilla.com/kb/Safe+Mode
http://support.mozilla.com/kb/Profiles

Comment 2

[Nenad Ognjanovic]

Attachment: html file with javascript that shows confirm window after 2 seconds

Comment 3

[Nenad Ognjanovic]

reproducible in Safe Mode and new profile

another way to test this would be if some site requested authorization and user/password auth window showed up and you happen to be dragging a tab at that time - that's how I discovered this bug.

Comment 4

[Ria Klaassen (not reading all bugmail)]

Yes, this is a known problem.

Comment 5

[Serge Gautherie (:sgautherie)]

V.Duplicate