It's #293 top browser crasher in 17.0a2 and #36 in 18.0a1. It first appeared in 17.0a1/20120809. The regression range might be (discontinuous across builds): http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e55638d4037a&tochange=3199bc043da4 Signature nsPluginStreamListenerPeer::SetUpStreamListener(nsIRequest*, nsIURI*) More Reports Search UUID 0c37ddbd-6a6f-472a-98a0-a53eb2120911 Date Processed 2012-09-11 22:41:17 Uptime 78 Install Age 1.2 hours since version was first installed. Install Time 2012-09-11 21:28:23 Product Firefox Version 18.0a1 Build ID 20120911030553 Release Channel nightly OS Windows NT OS Version 6.2.9200 Build Architecture x86 Build Architecture Info GenuineIntel family 6 model 42 stepping 7 Crash Reason EXCEPTION_ACCESS_VIOLATION_EXEC Crash Address 0x640065 App Notes AdapterVendorID: 0x10de, AdapterDeviceID: 0x0de5, AdapterSubsysID: 00000000, AdapterDriverVersion: 9.18.13.282 D2D? D2D+ DWrite? DWrite+ D3D10 Layers? D3D10 Layers+ EMCheckCompatibility True Adapter Vendor ID 0x10de Adapter Device ID 0x0de5 Total Virtual Memory 4294836224 Available Virtual Memory 3794104320 System Memory Use Percentage 16 Available Page File 8247623680 Available Physical Memory 7114756096 Frame Module Signature Source 0 @0x640065 1 xul.dll nsPluginStreamListenerPeer::SetUpStreamListener dom/plugins/base/nsPluginStreamListenerPeer.cpp:1104 2 xul.dll nsPluginStreamListenerPeer::OnStartRequest dom/plugins/base/nsPluginStreamListenerPeer.cpp:616 3 xul.dll nsObjectLoadingContent::LoadObject content/base/src/nsObjectLoadingContent.cpp:1741 4 xul.dll nsObjectLoadingContent::OnStartRequest content/base/src/nsObjectLoadingContent.cpp:847 5 xul.dll mozilla::net::nsHttpChannel::CallOnStartRequest netwerk/protocol/http/nsHttpChannel.cpp:969 6 xul.dll mozilla::net::nsHttpChannel::InitCacheEntry netwerk/protocol/http/nsHttpChannel.cpp:3635 7 nspr4.dll PR_GetHostByAddr nsprpub/pr/src/misc/prnetdb.c:1139 8 xul.dll nsCookieService::SetCookieStringCommon netwerk/cookie/nsCookieService.cpp:1468 9 mozglue.dll je_free memory/mozjemalloc/jemalloc.c:6575 10 xul.dll nsHttpChannelAuthProvider::`vector deleting destructor' 11 xul.dll nsHttpChannelAuthProvider::Release netwerk/protocol/http/nsHttpChannelAuthProvider.cpp:1408 12 xul.dll nsCOMPtr_base::assign_assuming_AddRef obj-firefox/dist/include/nsCOMPtr.h:440 13 xul.dll mozilla::net::nsHttpChannel::ProcessResponse netwerk/protocol/http/nsHttpChannel.cpp:1233 14 xul.dll mozilla::net::nsHttpChannel::OnStartRequest netwerk/protocol/http/nsHttpChannel.cpp:4790 15 xul.dll nsInputStreamPump::OnStateStart netwerk/base/src/nsInputStreamPump.cpp:417 16 xul.dll nsInputStreamPump::OnInputStreamReady netwerk/base/src/nsInputStreamPump.cpp:368 17 xul.dll nsInputStreamReadyEvent::Run xpcom/io/nsStreamUtils.cpp:82 18 xul.dll nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:624 19 xul.dll mozilla::ipc::MessagePump::Run ipc/glue/MessagePump.cpp:82 20 xul.dll MessageLoop::RunHandler ipc/chromium/src/base/message_loop.cc:201 21 xul.dll MessageLoop::Run ipc/chromium/src/base/message_loop.cc:175 22 xul.dll nsBaseAppShell::Run widget/xpwidgets/nsBaseAppShell.cpp:163 23 xul.dll nsAppShell::Run widget/windows/nsAppShell.cpp:232 24 xul.dll nsAppStartup::Run toolkit/components/startup/nsAppStartup.cpp:273 25 xul.dll XREMain::XRE_mainRun toolkit/xre/nsAppRunner.cpp:3835 26 xul.dll XREMain::XRE_main toolkit/xre/nsAppRunner.cpp:3912 27 xul.dll XRE_main toolkit/xre/nsAppRunner.cpp:3988 28 firefox.exe wmain toolkit/xre/nsWindowsWMain.cpp:100 More reports at: https://crash-stats.mozilla.com/report/list?signature=nsPluginStreamListenerPeer%3A%3ASetUpStreamListener%28nsIRequest*%2C+nsIURI*%29

Do you think this is related to your nsObjectLoadingContent work, John?

Crash volume for signature 'nsPluginStreamListenerPeer::SetUpStreamListener': - nightly(version 50):3 crashes from 2016-06-06. - aurora (version 49):7 crashes from 2016-06-07. - beta (version 48):200 crashes from 2016-06-06. - release(version 47):2703 crashes from 2016-05-31. - esr (version 45):334 crashes from 2016-04-07. Crash volume on the last weeks: W. N-1 W. N-2 W. N-3 W. N-4 W. N-5 W. N-6 W. N-7 - nightly 0 1 1 0 0 0 0 - aurora 2 0 3 0 0 1 1 - beta 32 29 24 23 33 16 31 - release 425 407 388 334 341 293 369 - esr 41 46 45 34 35 30 28 Affected platforms: Windows, Mac OS X, Linux

Too late for beta, we could still take a patch in aurora 50.

I don't have anyone with cycles for this currently.

Crash volume for signature 'nsPluginStreamListenerPeer::SetUpStreamListener': - nightly (version 52): 0 crashes from 2016-09-19. - aurora (version 51): 1 crash from 2016-09-19. - beta (version 50): 27 crashes from 2016-09-20. - release (version 49): 512 crashes from 2016-09-05. - esr (version 45): 430 crashes from 2016-07-25. Crash volume on the last weeks (Week N is from 10-17 to 10-23): W. N-1 W. N-2 W. N-3 W. N-4 - nightly 0 0 0 0 - aurora 0 1 0 0 - beta 8 6 8 5 - release 136 150 150 28 - esr 37 31 43 38 Affected platforms: Windows, Mac OS X, Linux Crash rank on the last 7 days: Browser Content Plugin - nightly - aurora - beta #2019 - release #389 #4206 - esr #230

Crash volume for signature 'nsPluginStreamListenerPeer::SetUpStreamListener': - nightly (version 54): 0 crashes from 2017-01-23. - aurora (version 53): 0 crashes from 2017-01-23. - beta (version 52): 18 crashes from 2017-01-23. - release (version 51): 43 crashes from 2017-01-16. - esr (version 45): 908 crashes from 2016-08-03. Crash volume on the last weeks (Week N is from 01-30 to 02-05): W. N-1 W. N-2 W. N-3 W. N-4 W. N-5 W. N-6 W. N-7 - nightly 0 - aurora 0 - beta 8 - release 22 0 - esr 19 36 35 28 15 20 44 Affected platforms: Windows, Mac OS X Crash rank on the last 7 days: Browser Content Plugin - nightly - aurora - beta #482 - release #550 #2370 - esr #291

Crashes don't appear to show up until we hit Beta in the cycle, for whatever that's worth.

Fairly low frequency crash, unlikely we will fix this for 52 but we could still take a patch in 53/54.

Resolving old bugs which are likely not relevant any more, since NPAPI plugins are deprecated.