This bug was filed from the Socorro interface and is report bp-79c7c27a-e51b-4d21-87c6-a9f352120208 . ============================================================= I've had this 6 times. Sometimes during site navigation, www.msnbc.com mainly. Also most are occuring overnight when I'm sleeping and browser is minimized to taskbar. This started I believe after the landing of: https://bugzilla.mozilla.org/show_bug.cgi?id=90268 Win7 x64, m-c nightly builds. Addons: Flashblock, Console2, ForecastFox Flash beta: 11.2.202.197

It first appeared in 13.a1/20120201. All crash reports have Flashblock installed. Signature mozilla::plugins::PluginInstanceParent::~PluginInstanceParent() More Reports Search UUID 79c7c27a-e51b-4d21-87c6-a9f352120208 Date Processed 2012-02-08 13:02:48 Uptime 3888 Last Crash 6.9 hours before submission Install Age 22.3 hours since version was first installed. Install Time 2012-02-07 14:43:57 Product Firefox Version 13.0a1 Build ID 20120207031136 Release Channel nightly OS Windows NT OS Version 6.1.7601 Service Pack 1 Build Architecture x86 Build Architecture Info AuthenticAMD family 16 model 2 stepping 3 Crash Reason EXCEPTION_ACCESS_VIOLATION_WRITE Crash Address 0x683b4194 User Comments loading story from msnbc.com 911 tapes article App Notes AdapterVendorID: 0x1002, AdapterDeviceID: 0x9610, AdapterSubsysID: 2a7f103c, AdapterDriverVersion: 8.881.0.0 D2D? D2D+ DWrite? DWrite+ D3D10 Layers? D3D10 Layers+ EMCheckCompatibility True Frame Module Signature [Expand] Source 0 xul.dll mozilla::plugins::PluginInstanceParent::~PluginInstanceParent dom/plugins/ipc/PluginInstanceParent.cpp:110 1 xul.dll mozilla::plugins::PluginInstanceParent::`scalar deleting destructor' 2 xul.dll nsCOMPtr_base::assign_from_qi obj-firefox/xpcom/build/nsCOMPtr.cpp:96 3 xul.dll NS_GetInnermostURI obj-firefox/dist/include/nsNetUtil.h:1573 4 xul.dll nsScriptSecurityManager::CheckLoadURIWithPrincipal caps/src/nsScriptSecurityManager.cpp:1429 5 mozjs.dll js::detail::HashTable<js::Shape* const,js::HashSet<js::Shape*,js::ShapeHasher,js::SystemAllocPolicy>::SetOps,js::SystemAllocPolicy>::lookup obj-firefox/dist/include/js/HashTable.h:464 6 mozjs.dll js::InitialShapeEntry::match js/src/jsscope.cpp:1417 7 mozjs.dll js::detail::HashTable<js::InitialShapeEntry const,js::HashSet<js::InitialShapeEntry,js::InitialShapeEntry,js::SystemAllocPolicy>::SetOps,js::SystemAllocPolicy>::lookup obj-firefox/dist/include/js/HashTable.h:464 8 mozglue.dll idalloc memory/jemalloc/jemalloc.c:4641 9 mozglue.dll je_malloc memory/jemalloc/jemalloc.c:6306 10 xul.dll SearchTable obj-firefox/xpcom/build/pldhash.cpp:439 11 xul.dll nsTHashtable<nsBaseHashtableET<nsCStringHashKey,nsFactoryEntry*> >::s_MatchEntry obj-firefox/dist/include/nsTHashtable.h:442 12 xul.dll SearchTable obj-firefox/xpcom/build/pldhash.cpp:439 13 xul.dll nsStyleContext::CalcStyleDifference layout/style/nsStyleContext.cpp:484 14 xul.dll PL_DHashTableOperate obj-firefox/xpcom/build/pldhash.cpp:625 15 xul.dll nsScriptSecurityManager::QueryInterface caps/src/nsScriptSecurityManager.cpp:513 16 xul.dll nsComponentManagerImpl::GetServiceByContractID xpcom/components/nsComponentManager.cpp:1410 17 xul.dll nsRefPtr<nsIDOMEventListener>::~nsRefPtr<nsIDOMEventListener> obj-firefox/dist/include/nsAutoPtr.h:908 18 xul.dll nsComponentManagerImpl::GetServiceByContractID xpcom/components/nsComponentManager.cpp:1410 19 xul.dll nsINode::AddEventListener content/base/src/nsGenericElement.cpp:1100 20 xul.dll nsPluginHost::InstantiateEmbeddedPlugin dom/plugins/base/nsPluginHost.cpp:1033 21 mozjs.dll js::InvokeKernel js/src/jsinterp.cpp:522 22 mozjs.dll js::Invoke js/src/jsinterp.cpp:549 23 mozjs.dll JS_CallFunctionValue js/src/jsapi.cpp:5454 24 xul.dll nsJSContext::Release dom/base/nsJSEnvironment.cpp:1168 25 xul.dll nsTHashtable<nsBaseHashtableET<nsCStringHashKey,nsFactoryEntry*> >::s_MatchEntry obj-firefox/dist/include/nsTHashtable.h:442 26 xul.dll SearchTable obj-firefox/xpcom/build/pldhash.cpp:472 27 xul.dll SearchTable obj-firefox/xpcom/build/pldhash.cpp:439 28 xul.dll xul.dll@0x12c0ff 29 @0x12e51caf 30 xul.dll nsRefPtr<nsIDOMEventListener>::~nsRefPtr<nsIDOMEventListener> obj-firefox/dist/include/nsAutoPtr.h:908 31 xul.dll nsComponentManagerImpl::GetService xpcom/components/nsComponentManager.cpp:1215 32 xul.dll nsHTMLDocument::QueryInterface content/html/document/src/nsHTMLDocument.cpp:287 33 xul.dll nsCOMPtr_base::assign_from_qi obj-firefox/xpcom/build/nsCOMPtr.cpp:96 34 xul.dll nsObjectLoadingContent::InstantiatePluginInstance content/base/src/nsObjectLoadingContent.cpp:637 More reports at: https://crash-stats.mozilla.com/report/list?signature=mozilla%3A%3Aplugins%3A%3APluginInstanceParent%3A%3A~PluginInstanceParent%28%29

I've not had anymore crashes with this sig since https://bugzilla.mozilla.org/show_bug.cgi?id=723473 landed. Closing this as Fixed by bug 723473

The latest crash happened in 13.0a1/20120208. So the first patch of bug 723473 fixed it.