394367 - new window can be closed before initialization is completed causing leak

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[cburroughs]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.6) Gecko/20070806 Firefox/2.0.0.6
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.6) Gecko/20070806 Firefox/2.0.0.6

Note that I observe this bug with the wizzRSS extension but believe it to be exposing a Firefox bug.  I believe that other extensions or Firefox itself could suffer from it.  If I am incorrect this bug is of course invalid.

When a new window is opened "stuff" happens.  For example the wizzRSS extension starts an observer.  However, if the window can be closed before the "stuff" is initialized causing attempts to delete things that are not there.  Or in the words of the Leak Monitor extension "chrome windows close but leave other code pointing at their JavaScript".

Reproducible: Always

Steps to Reproduce:
1. Go to http://eres.bucknell.edu/eres/coursepage.aspx?cid=1578&page=docs .
2. Click on one of the document links.
3.  FF opens a new window, closes it, and also opens up a "what should I do with this file" dialog.
Actual Results:  
Leak Monitor (https://addons.mozilla.org/en-US/firefox/addon/2490):
[+] [leaked object] (881df20) = [Object]
[+] observe (881df10, chrome://wizzrss/content/toolbar.js, 92-100) = [Function]
[ ] prototype (847de20) = [Object] 


Expected Results:  
No leak.

I discussed this with the developer already to see if it was a problem with the extentsion:
http://www.wizzrss.com/phpBB2/viewtopic.php?p=3603

Comment 1

[Jesse Ruderman]

David, you might find this bug report interesting.

Comment 2

[Jonas Sicking (:sicking) No longer reading bugmail consistently]

Does this still leak in firefox 3 beta 2?

Comment 3

[Tyler Downer [He/Him]]

This bug was reported on Firefox 2.x or older, which is no longer supported and will not be receiving any more updates. I strongly suggest that you update to Firefox 3.6.3 or later, update your plugins (flash, adobe, etc.), and retest in a new profile. If you still see the issue with the updated Firefox, please post here. Otherwise, please close as RESOLVED > WORKSFORME
http://www.mozilla.com
http://support.mozilla.com/kb/Managing+profiles
http://support.mozilla.com/kb/Safe+mode

Comment 4

[Tyler Downer [He/Him]]

No reply, INCOMPLETE. Please retest with Firefox 3.6.x 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.