449965 - Random silent crashes after running Firefox for a few hours

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[Nathan Tuggy (:tuggyne)]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1

Starting a week or so ago, Firefox began a nasty habit of crashing when I leave it running with 10 or 15 tabs for more than a few hours. Worse, though Windows sometimes picks it up and offers to submit a crash report, the built-in Crash Reporter never runs. Apparently an unhandled exception or something? Of course, the next time I start Firefox, it offers to restore my session, and I always do, and then it goes a few more hours and crashes again (or I close it preemptively).

I suspect an addon, but I've disabled all the ones I think might cause it, unless some recent update has done this.

Extensions (are you ready?):
Adblock Plus     0.7.5.5
Adblock Plus: Element Hiding Helper  1.0.5
BugMeNot         2.0
Check4Change     1.6
DOM Inspector    2.0.0
Fast Dial        1.90
FaviconizeTab    0.9.8.2
Firebug          1.2.0b7
FireGestures     1.1.2
Free Download Manager plugin  1.3.2 (FDM version 2.5 build 755)
GreaseMonkey     0.8.20080609.0
HashColouredTabs+  0.4.18
IE Tab           1.5.20080803
Locationbar²     1.0.3
NoScript         1.7.8
SearchLoad Options  0.5.3
Skype extension for Firefox  2.2.0.94 (Skype version 3.8.0.144)
Tabs Open Relative  0.3.3
Tamper Data      10.1.0
Toolbar Buttons  0.5.0.5
Web Developer    1.1.6

Reproducible: Sometimes

Steps to Reproduce:
1. Open a lot of tabs (this step may be optional)
2. Wait two to six hours
Actual Results:  
Firefox crashes, silently or with only the standard Windows crash report (e.g. Mozilla Crash Reporter doesn't show up or notice).

Expected Results:  
Stayed running.

Several DLLs seem implicated, but I'm not sure any of them is really the cause.

From Windows crash reports:
NPSWF32.dll (v9.0.124.0)
MOZCRT19.dll (v8.0.0.0) (twice)

Comment 1

[Nathan Tuggy (:tuggyne)]

Attachment: Windows crash report (reformatted as ANSI text)

Comment 2

[Nathan Tuggy (:tuggyne)]

Attachment: Windows crash report (reformatted as ANSI text)

Comment 3

[Nathan Tuggy (:tuggyne)]

Attachment: Windows crash report (reformatted as ANSI text)

Comment 4

[Matthias Versen [:Matti]]

The windows crash report doesn't help.
Please read http://mversen.de/crash/ (also include the safemode).

Comment 5

[Nathan Tuggy (:tuggyne)]

Attachment: Page that appears to cause crash (sample; sanitized)

After observing Firefox for a few more days, with Flash disabled (including Flash for Director), I believe the crashes are caused by a particular page that has Flash on it, as well as fallback scripts. Unfortunately, this is a Facebook app page (http://apps.new.facebook.com/crusades/*). I'm not sure how best to help debug this, so am attaching source in case that will help.

Again, HTH.

Comment 6

[Matthias Versen [:Matti]]

Use http://developer.mozilla.org/en/docs/How_to_get_a_stacktrace_with_WinDbg or install flash 10 RC and get a crash ID.

Comment 7

[Nathan Tuggy (:tuggyne)]

Should have checked the Skype addon more carefully, as that seems responsible, along with that one particular set of pages which includes flash.
I'm marking this as invalid, as it's really a Skype problem.