661820 - Firefox process fails to exit after browser shutdown (if browser has been running for a while)

Status: RESOLVED DUPLICATE of bug 401301

(Firefox :: General, defect)

Description

[IU]

Attachment: stack trace: taken approximately 5 minutes after shutting down Firefox

After Firefox has been running for a bit, shutting Firefox down results in the firefox.exe process remaining in memory.  This began about a month or so ago and, so far as I can tell, affects only Firefox running on 32-bit Windows.  On 64-bit Windows, there is no problem.

I've already ruled out extensions, as Firefox on the 64-bit Windows has basically the same set of extensions as the one running on the 32-bit Windows.

I ran Firefox in a debugger and was able to obtain the attached stack trace.  I waited for about 5 minutes, after closing Firefox, before issue the break and generating the trace.