397445 - UI events pile up while File Upload window is opened by a popup window

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Bart Robinson]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a9pre) Gecko/2007092405 Minefield/3.0a9pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a9pre) Gecko/2007092405 Minefield/3.0a9pre

When a popup window has the File Upload dialog open, you are unable to click anywhere in the popup window (the dialog is modal).  However, if you go back to your main browser window and click around, these mouseclicks don't do anything at first but seem to "stack up"; when you close the File Upload dialog, all the click events start firing in the main window.  This leads to some very strange behavior; for example, if you click on all the main menu items while the File Upload dialog was open, you end up with all the menus dropped down at the same time.

Reproducible: Always

Steps to Reproduce:
1. Open a popup window that has a file-upload field (I tested in GMail by holding down Shift and clicking on Compose Mail).
2. Click the Browse button or its equivalent to open a File Upload dialog from the popup window.
3. Go back to (one of) your main Firefox window(s) and click on various things (tabs, menus, Back button).
Actual Results:  
Nothing happens until you close the File Upload dialog, then all hell breaks loose in your main window as the mouseclicks start having their effect.

Expected Results:  
Either (1) the mouseclicks are ignored, as they are if you click inside the popup window; or (2) the mouseclicks take immediate effect.  I'd prefer (2), but I understand that might be more difficult to implement.

I first noticed this in Firefox 2.0.0.7, but the behavior there is somewhat different: clicks on menus and buttons take immediate effect, but you can't switch tabs by clicking on them (though you still can by selecting them from the tab drop-down menu on the right).

Comment 1

[Ria Klaassen (not reading all bugmail)]

Dupe of bug 389931 ?

Comment 2

[thejynxed]

This also happens when you attempt to browse/navigate for a save folder other than the last folder used, during the Save dialogs opened from websites (for instance, downloading patches manually from Microsoft).

The entire UI can freeze for up to 30 seconds or more.

Repeatable every single time you upload or download.

WinXP Pro SP3, Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3

Comment 3

[Tyler Downer [He/Him]]

Does this still happen with 3.6.6 or later in a fresh profile?

Comment 4

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.8 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.