User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a3pre) Gecko/20100303 Minefield/3.7a3pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a3pre) Gecko/20100303 Minefield/3.7a3pre We produce a plug-in called XStandard. The plug-in downloads configuration files while it loads. Often it needs to pop-up a dialog box to inform the user that it failed to download a config file or prompt the user to enter username/password if the config file is protected by authentication or proxy. Using: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a3pre) Gecko/20100303 Minefield/3.7a3pre ... Minefield causes our plug-in to crash when the plug-in pops-up a message box during loading. Some users have reported this behavior in the latest FF release but we cannot reproduce it. We can only reproduce this with the nightly builds. Reproducible: Always Steps to Reproduce: 1. Install this plug-in: http://misc.xstandard.com/mozilla/NPXStandard.dll 2. Go to this page: http://misc.xstandard.com/mozilla/pop-up.htm 3. The plug-in will pop-up a message box about an invalid license file. Then Minefield will cause the plug-in to crash. Actual Results: Plug-in crash. Expected Results: Plug-in should not crash.

https://developer.mozilla.org/En/How_to_get_a_stacktrace_for_a_bug_report https://developer.mozilla.org/en/How_to_get_a_stacktrace_with_WinDbg

I can confirm the crash. I don't get a breakpad report, but I think that is because the browser hangs before the crash. If that happens bsmedberg advises we have a bug to collect crash reports from that but we aren't doing it yet.

Could this in anyway be related to a Java Security popups behaving the same way? In this case it's the java plugin that crashes when displaying a modal popup. Minefield recovers cleany and no error report is generated. Steps to reproduce: 1. go to http://www.intel.com/support/detect.htm 2. click "check your system for the latest updates" 3. A unresponsive dialog shows up and the java runtime crashes. Related mozillazine thread with more info: http://forums.mozillazine.org/viewtopic.php?f=23&t=1802595 Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a4pre) Gecko/20100317 Minefield/3.7a4pre

Crash reports for this bug courtesy of bug 544936: plugin: bp-c2b338b6-ffc4-4b9d-9250-56f0b2100325 firefox: bp-db7661b7-77aa-4ab8-8b52-ec9f62100325 Crash reports for comment 3: plugin: bp-e568be2c-b88e-477d-9b2c-76e042100325 firefox: bp-cd4fec7b-b7b3-4c39-b9f3-fd5ea2100325 It's not clear to me if these two hangs are caused by the same bug, but the stack on the main Firefox thread is quite different.

Java hang with Security pop-up could be bug 555699 - though that's for Signature Warning modal dialog

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.3a5pre) Gecko/20100502 Minefield/3.7a5pre ( .NET CLR 3.5.30729) ID:20100502040440 I can no longer reproduce this with trunk. Vlad: are you still able to reproduce?

>Vlad: are you still able to reproduce? No. However, I did manage to get a crash that appears to be related to this bug. Can we please keep this bug open for another week which will give me time to reproduce and document the crash.

I can no longer reproduce this bug nor a related issue. So let's close this bug. Thanks!

Thank you for your response. Not sure which change fixed this so closing WFM