1223184 - startup crash in mozalloc_abort | NS_DebugBreak | mozilla::layers::ClientLayerManager::GetBackendName

Status: RESOLVED DUPLICATE of bug 1218364

(Core :: Graphics: Layers, defect)

Description

[u279076]

This bug was filed from the Socorro interface and is 
report bp-384711aa-4f83-428f-b1ae-9ad282151106.
=============================================================
0 	mozglue.dll 	mozalloc_abort(char const* const) 	memory/mozalloc/mozalloc_abort.cpp
1 	xul.dll 	NS_DebugBreak 	xpcom/base/nsDebugImpl.cpp
2 	xul.dll 	mozilla::layers::ClientLayerManager::GetBackendName(nsAString_internal&) 	gfx/layers/client/ClientLayerManager.cpp
3 	xul.dll 	nsDOMWindowUtils::GetLayerManagerType(nsAString_internal&) 	dom/base/nsDOMWindowUtils.cpp
4 	xul.dll 	XPTC__InvokebyIndex 	xpcom/reflect/xptcall/md/win32/xptcinvoke_asm_x86_64.asm
5 		@0x965907 	
6 	xul.dll 	XPCWrappedNative::GetAttribute(XPCCallContext&) 	js/xpconnect/src/xpcprivate.h
7 	xul.dll 	XPC_WN_GetterSetter(JSContext*, unsigned int, JS::Value*) 	js/xpconnect/src/XPCWrappedNativeJSOps.cpp
8 	xul.dll 	js::Invoke(JSContext*, JS::CallArgs const&, js::MaybeConstruct) 	js/src/vm/Interpreter.cpp
9 	xul.dll 	js::Invoke(JSContext*, JS::Value const&, JS::Value const&, unsigned int, JS::Value const*, JS::MutableHandle<JS::Value>) 	js/src/vm/Interpreter.cpp
10 	xul.dll 	js::GetProperty(JSContext*, JS::Handle<JSObject*>, JS::Handle<JS::Value>, JS::Handle<jsid>, JS::MutableHandle<JS::Value>) 	js/src/vm/NativeObject.h
11 	xul.dll 	GetPropertyOperation 	js/src/vm/Interpreter.cpp
12 	xul.dll 	Interpret 	js/src/vm/Interpreter.cpp
13 	xul.dll 	js::RunScript(JSContext*, js::RunState&) 	js/src/vm/Interpreter.cpp
14 	xul.dll 	js::Invoke(JSContext*, JS::CallArgs const&, js::MaybeConstruct) 	js/src/vm/Interpreter.cpp
15 	xul.dll 	js::Invoke(JSContext*, JS::Value const&, JS::Value const&, unsigned int, JS::Value const*, JS::MutableHandle<JS::Value>) 	js/src/vm/Interpreter.cpp
16 	xul.dll 	js::DirectProxyHandler::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) 	js/src/proxy/DirectProxyHandler.cpp
17 	xul.dll 	js::CrossCompartmentWrapper::call(JSContext*, JS::Handle<JSObject*>, JS::CallArgs const&) 	js/src/proxy/CrossCompartmentWrapper.cpp
18 	xul.dll 	js::Invoke(JSContext*, JS::CallArgs const&, js::MaybeConstruct) 	js/src/vm/Interpreter.cpp
19 	xul.dll 	Interpret 	js/src/vm/Interpreter.cpp
20 	xul.dll 	js::RunScript(JSContext*, js::RunState&) 	js/src/vm/Interpreter.cpp
21 	xul.dll 	js::Invoke(JSContext*, JS::CallArgs const&, js::MaybeConstruct) 	js/src/vm/Interpreter.cpp
22 	xul.dll 	js::Invoke(JSContext*, JS::Value const&, JS::Value const&, unsigned int, JS::Value const*, JS::MutableHandle<JS::Value>) 	js/src/vm/Interpreter.cpp
23 	xul.dll 	mozilla::dom::EventListener::HandleEvent(JSContext*, JS::Handle<JS::Value>, mozilla::dom::Event&, mozilla::ErrorResult&) 	obj-firefox/dom/bindings/EventListenerBinding.cpp
24 	xul.dll 	mozilla::EventListenerManager::HandleEventInternal(nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent**, mozilla::dom::EventTarget*, nsEventStatus*) 	dom/events/EventListenerManager.cpp
25 	xul.dll 	mozilla::EventTargetChainItem::HandleEventTargetChain(nsTArray<mozilla::EventTargetChainItem>&, mozilla::EventChainPostVisitor&, mozilla::EventDispatchingCallback*, mozilla::ELMCreationDetector&) 	dom/events/EventDispatcher.cpp
26 	xul.dll 	mozilla::EventDispatcher::Dispatch(nsISupports*, nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent*, nsEventStatus*, mozilla::EventDispatchingCallback*, nsTArray<mozilla::dom::EventTarget*>*) 	dom/events/EventDispatcher.cpp
27 	xul.dll 	nsDocumentViewer::LoadComplete(nsresult) 	layout/base/nsDocumentViewer.cpp
28 	xul.dll 	nsDocShell::EndPageLoad(nsIWebProgress*, nsIChannel*, nsresult) 	docshell/base/nsDocShell.cpp
29 	xul.dll 	nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) 	docshell/base/nsDocShell.cpp
30 	xul.dll 	nsDocLoader::DoFireOnStateChange(nsIWebProgress* const, nsIRequest* const, int&, nsresult) 	uriloader/base/nsDocLoader.cpp
31 	xul.dll 	nsDocLoader::doStopDocumentLoad(nsIRequest*, nsresult) 	uriloader/base/nsDocLoader.cpp
32 	xul.dll 	nsDocLoader::DocLoaderIsEmpty(bool) 	uriloader/base/nsDocLoader.cpp
33 	xul.dll 	nsDocLoader::OnStopRequest(nsIRequest*, nsISupports*, nsresult) 	uriloader/base/nsDocLoader.cpp
34 	xul.dll 	nsLoadGroup::RemoveRequest(nsIRequest*, nsISupports*, nsresult) 	netwerk/base/nsLoadGroup.cpp
35 	xul.dll 	nsDocument::DoUnblockOnload() 	dom/base/nsDocument.cpp
36 	xul.dll 	nsDocument::UnblockOnload(bool) 	dom/base/nsDocument.cpp
37 	xul.dll 	nsDocument::DispatchContentLoadedEvents() 	dom/base/nsDocument.cpp
38 	xul.dll 	nsRunnableMethodImpl<void ( mozilla::dom::HTMLMediaElement::*)(void), 1>::Run() 	xpcom/glue/nsThreadUtils.h
39 	xul.dll 	nsThread::ProcessNextEvent(bool, bool*) 	xpcom/threads/nsThread.cpp
40 	xul.dll 	mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) 	ipc/glue/MessagePump.cpp
41 	xul.dll 	MessageLoop::RunHandler() 	ipc/chromium/src/base/message_loop.cc
42 	xul.dll 	MessageLoop::Run() 	ipc/chromium/src/base/message_loop.cc
43 	xul.dll 	nsBaseAppShell::Run() 	widget/nsBaseAppShell.cpp
44 	xul.dll 	nsAppShell::Run() 	widget/windows/nsAppShell.cpp
45 	xul.dll 	nsAppStartup::Run() 	toolkit/components/startup/nsAppStartup.cpp
46 	xul.dll 	XREMain::XRE_mainRun() 	toolkit/xre/nsAppRunner.cpp
47 	xul.dll 	XREMain::XRE_main(int, char** const, nsXREAppData const*) 	toolkit/xre/nsAppRunner.cpp
48 	xul.dll 	XRE_main 	toolkit/xre/nsAppRunner.cpp
49 	firefox.exe 	do_main 	browser/app/nsBrowserApp.cpp
50 	firefox.exe 	NS_internal_main(int, char**) 	browser/app/nsBrowserApp.cpp
51 	firefox.exe 	wmain 	toolkit/xre/nsWindowsWMain.cpp
52 	firefox.exe 	__tmainCRTStartup 	f:/dd/vctools/crt/crtw32/startup/crt0.c:255
Ø 53 	kernel32.dll 	kernel32.dll@0x15a4c 	
Ø 54 	ntdll.dll 	ntdll.dll@0x2b830 	
Ø 55 	kernel32.dll 	kernel32.dll@0x9b82f 	
Ø 56 	kernel32.dll 	kernel32.dll@0x9b82f 	
=============================================================
More reports: https://crash-stats.mozilla.com/report/list?product=Firefox&signature=mozalloc_abort+|+NS_DebugBreak+|+mozilla%3A%3Alayers%3A%3AClientLayerManager%3A%3AGetBackendName

Comment 1

[u279076]

There are some crashes going back to 43.0a2 but the stack is slightly different:
https://crash-stats.mozilla.com/report/index/906d8b25-13d8-4e73-a96e-0d2e32151027

Comment 2

[u279076]

The following breaks down the correlations by version for the last 6 months of data:
1 	45.0a1 	35 	60.34 %
2 	44.0a1 	15 	25.86 %
3 	43.0a2 	4 	6.90 %
4 	44.0a2 	4 	6.90 %

Based on this it appears as though this *might* be something that landed in Firefox 44.0a1 and was uplifted to Aurora 43.0a2. There are no strong GPU/driver correlations.

Comment 3

[u279076]

Here is the pushlog for the 44.0a1 range:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e8c7dfe727cd970e2c3294934e2927b14143c205&tochange=1a157155a4fe0074b3d03b54fe9e466472c2cd56

Comment 4

[Steve England [:stevee]]

I get this crash by doing Help > Troubleshooting Information about 50% of the time. Haven't tried with a new profile.
https://crash-stats.mozilla.com/report/index/f610e0d7-1de1-4cc2-8f27-edb382151114

Comment 5

[u279076]

Jeff, do you have any insight for this crash or the regression range above?

Steve, could you please attach a copy of about:support to this bug report?

Comment 6

[Steve England [:stevee]]

Just got half a dozen crashes doing about:support :-)

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 ID:20151116030208 CSet: 48d636f678b0e5162ab868dc9024a5ffe350460c

https://crash-stats.mozilla.com/report/index/bp-232bcaee-4bac-4c52-b938-2107e2151116

Application Basics
------------------

Name: Firefox
Version: 45.0a1
Build ID: 20151116030208
Update Channel: nightly
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Multiprocess Windows: 0/1 (default: false)
Safe Mode: false

Crash Reports for the Last 3 Days
---------------------------------

Report ID: bp-6754f53b-223b-4a6d-b875-ec9ed2151116
Submitted: 1 minute ago

Report ID: bp-8157c7f4-e858-41a0-962d-8dfc22151116
Submitted: 1 minute ago

Report ID: bp-7fe596fb-8aac-4144-8f16-b0e492151116
Submitted: 1 minute ago

Report ID: bp-43a01ab5-f909-4713-9cec-2488e2151116
Submitted: 1 minute ago

Report ID: bp-232bcaee-4bac-4c52-b938-2107e2151116
Submitted: 2 minutes ago

Report ID: bp-f610e0d7-1de1-4cc2-8f27-edb382151114
Submitted: 2 days ago

All Crash Reports

Extensions
----------

Name: BetterPrivacy
Version: 1.68.1-signed
Enabled: true
ID: {d40f5e7b-d2cf-4856-b441-cc613eeffbe3}

Name: Blank Your Monitor + Easy Reading
Version: 1.9.13.1-signed
Enabled: true
ID: [e-mail]

Name: Context Search X
Version: 0.4.6.23.1-signed
Enabled: true
ID: [e-mail]

Name: Cookie Monster
Version: 1.2.5.1-signed
Enabled: true
ID: {45d8ff86-d909-11db-9705-005056c00008}

Name: FindBar Tweak
Version: 2.1.2
Enabled: true
ID: fbt@quicksaver

Name: FireGestures
Version: 1.10a3
Enabled: true
ID: [e-mail]

Name: Flagfox
Version: 5.1.4
Enabled: true
ID: {1018e4d6-728f-4b20-ad56-37578a4de76b}

Name: FlashGot
Version: 1.5.6.12.1-signed
Enabled: true
ID: {19503e42-ca3c-4c27-b1e2-9cdb2170ee34}

Name: Gmail Notifier (restartless)
Version: 0.5.8
Enabled: true
ID: jid0-GjwrPchS3Ugt7xydvqVK4DQk8Ls@jetpack

Name: Location Bar Enhancer
Version: 5.2.1-signed
Enabled: true
ID: UIEnhancer@girishsharma

Name: Menu Editor
Version: 1.2.7
Enabled: true
ID: {EDA7B1D7-F793-4e03-B074-E6F303317FB0}

Name: Nightly Tester Tools
Version: 3.7.1-signed
Enabled: true
ID: {8620c15f-30dc-4dba-a131-7c5d20cf4a29}

Name: Nuke Anything Enhanced
Version: 1.1.1-signed
Enabled: true
ID: {1ced4832-f06e-413f-aa14-9eb63ad40ace}

Name: Paste and Go 2
Version: 0.8
Enabled: true
ID: [e-mail]

Name: Places Maintenance
Version: 1.3.1-signed
Enabled: true
ID: [e-mail]

Name: SPDY indicator
Version: 2.2.1-signed
Enabled: true
ID: [e-mail]

Name: Tab Mix Plus
Version: 0.4.2.0pre.151113a1
Enabled: true
ID: {dc572301-7619-498c-a57d-39143191b318}

Name: TinEye Reverse Image Search
Version: 1.2.1
Enabled: true
ID: [e-mail]

Name: uBlock Origin
Version: 1.3.2
Enabled: true
ID: [e-mail]

Name: ChromEdit Plus
Version: 2.9.10
Enabled: false
ID: [e-mail]

Name: Free Download Manager extension
Version: 2.0.14
Enabled: false
ID: [e-mail]

Graphics
--------

Adapter Description: NVIDIA GeForce GTX 970
Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Adapter RAM: 4095
Asynchronous Pan/Zoom: none
Device ID: 0x13c2
Direct2D Enabled: true
DirectWrite Enabled: true (6.2.9200.17461)
Driver Date: 10-2-2015
Driver Version: 10.18.13.5850
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC)
Subsys ID: 39753842
Supports Hardware H264 Decoding: Yes
Vendor ID: 0x10de
WebGL Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 970 Direct3D11 vs_5_0 ps_5_0)
windowLayerManagerRemote: true
AzureCanvasBackend: direct2d 1.1
AzureContentBackend: direct2d 1.1
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0

Important Modified Preferences
------------------------------

accessibility.typeaheadfind.flashBar: 0
accessibility.warn_on_browsewithcaret: false
browser.cache.disk.capacity: 204800
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.hashstats_reported: 1
browser.cache.disk.smart_size.enabled: false
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.frecency_experiment: 4
browser.display.use_document_colors: true
browser.download.folderList: 2
browser.download.importedFromSqlite: true
browser.download.manager.alertOnEXEOpen: true
browser.download.manager.scanWhenDone: false
browser.download.manager.showWhenStarting: false
browser.history_expire_days_min: 1000
browser.history_expire_days.mirror: 1000
browser.history_expire_sites: 500000
browser.places.createdDefaultQueries: true
browser.places.createdSmartBookmarks: true
browser.places.importBookmarksHTML: false
browser.places.importDefaults: false
browser.places.leftPaneFolderId: 2758
browser.places.migratePostDataAnnotations: false
browser.places.organizer.options.bookmarks: place:queryType=1
browser.places.organizer.options.history: place:&sort=4
browser.places.smartBookmarksVersion: 7
browser.places.updateRecentTagsUri: false
browser.privatebrowsing.dont_prompt_on_enter: true
browser.search.openintab: true
browser.search.update: false
browser.search.useDBForOrder: true
browser.sessionstore.upgradeBackup.latestBuildID: 20151116030208
browser.startup.homepage: about:blank
browser.startup.homepage_override.buildID: 20151116030208
browser.startup.homepage_override.mstone: 45.0a1
browser.tabs.closeButtons: 1
browser.tabs.closeWindowWithLastTab: false
browser.tabs.drawInTitlebar: false
browser.tabs.insertRelatedAfterCurrent: false
browser.tabs.loadBookmarksInBackground: true
browser.tabs.loadUrlInBackground: false
browser.tabs.remote.autostart.2: false
browser.tabs.warnOnClose: false
browser.urlbar.animateBlend: false
browser.urlbar.default.behavior: 0
browser.urlbar.hideProtocols: http https
dom.apps.reset-permissions: true
dom.disable_window_open_feature.locationbar: false
dom.mozApps.maxLocalId: 1001
dom.mozApps.runUpdate: false
dom.mozApps.used: true
dom.report_all_js_exceptions: true
dom.w3c_touch_events.expose: false
extensions.checkCompatibility: false
extensions.checkCompatibility.10.0: false
extensions.checkCompatibility.10.0a: false
extensions.checkCompatibility.11.0: false
extensions.checkCompatibility.11.0a: false
extensions.checkCompatibility.12.0: false
extensions.checkCompatibility.12.0a: false
extensions.checkCompatibility.13.0: false
extensions.checkCompatibility.13.0a: false
extensions.checkCompatibility.14.0: false
extensions.checkCompatibility.14.0a: false
extensions.checkCompatibility.15.0: false
extensions.checkCompatibility.15.0a: false
extensions.checkCompatibility.16.0: false
extensions.checkCompatibility.16.0a: false
extensions.checkCompatibility.17.0: false
extensions.checkCompatibility.17.0a: false
extensions.checkCompatibility.18.0: false
extensions.checkCompatibility.18.0a: false
extensions.checkCompatibility.19.0: false
extensions.checkCompatibility.19.0a: false
extensions.checkCompatibility.20.0: false
extensions.checkCompatibility.20.0a: false
extensions.checkCompatibility.21.0: false
extensions.checkCompatibility.21.0a: false
extensions.checkCompatibility.22.0: false
extensions.checkCompatibility.22.0a: false
extensions.checkCompatibility.23.0a: false
extensions.checkCompatibility.24.0a: false
extensions.checkCompatibility.25.0a: false
extensions.checkCompatibility.26.0a: false
extensions.checkCompatibility.27.0a: false
extensions.checkCompatibility.28.0a: false
extensions.checkCompatibility.29.0a: false
extensions.checkCompatibility.3.6: false
extensions.checkCompatibility.3.6b: false
extensions.checkCompatibility.3.6p: false
extensions.checkCompatibility.3.6pre: false
extensions.checkCompatibility.3.7a: false
extensions.checkCompatibility.30.0a: false
extensions.checkCompatibility.31.0a: false
extensions.checkCompatibility.32.0a: false
extensions.checkCompatibility.33.0a: false
extensions.checkCompatibility.34.0a: false
extensions.checkCompatibility.35.0a: false
extensions.checkCompatibility.36.0a: false
extensions.checkCompatibility.37.0a: false
extensions.checkCompatibility.38.0a: false
extensions.checkCompatibility.39.0a: false
extensions.checkCompatibility.4.0: false
extensions.checkCompatibility.4.0b: false
extensions.checkCompatibility.4.0p: false
extensions.checkCompatibility.4.0pre: false
extensions.checkCompatibility.4.2: false
extensions.checkCompatibility.4.2a: false
extensions.checkCompatibility.4.2a1: false
extensions.checkCompatibility.4.2a1pre: false
extensions.checkCompatibility.4.2b: false
extensions.checkCompatibility.40.0a: false
extensions.checkCompatibility.41.0a: false
extensions.checkCompatibility.42.0a: false
extensions.checkCompatibility.43.0a: false
extensions.checkCompatibility.44.0a: false
extensions.checkCompatibility.45.0a: false
extensions.checkCompatibility.5.0: false
extensions.checkCompatibility.5.0a: false
extensions.checkCompatibility.5.0b: false
extensions.checkCompatibility.6.0: false
extensions.checkCompatibility.6.0a: false
extensions.checkCompatibility.6.0b: false
extensions.checkCompatibility.7.0: false
extensions.checkCompatibility.7.0a: false
extensions.checkCompatibility.7.0b: false
extensions.checkCompatibility.8.0: false
extensions.checkCompatibility.8.0a: false
extensions.checkCompatibility.9.0: false
extensions.checkCompatibility.9.0a: false
extensions.checkCompatibility.nightly: false
extensions.lastAppVersion: 45.0a1
font.internaluseonly.changed: false
general.autoScroll: false
gfx.crash-guard.d3d11layers.appVersion: 43.0a1
gfx.crash-guard.d3d11layers.deviceID: 0x13c2
gfx.crash-guard.d3d11layers.driverVersion: 10.18.13.5362
gfx.crash-guard.d3d11layers.feature-d2d: true
gfx.crash-guard.d3d11layers.feature-d3d11: true
gfx.crash-guard.glcontext.gfx.driver-init.direct3d11-angle: true
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle: true
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-try-d3d11: true
gfx.crash-guard.status.d3d11layers: 2
gfx.crash-guard.status.d3d9video: 2
gfx.crash-guard.status.glcontext: 2
gfx.direct3d.last_used_feature_level_idx: 0
gfx.direct3d.prefer_10_1: true
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gfx.driver-init.deviceID: 0x13c2
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javascript.options.strict: true
keyword.URL: http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=
media.gmp-eme-adobe.abi: x86-msvc-x64
media.gmp-eme-adobe.lastUpdate: 1445128587
media.gmp-eme-adobe.version: 15
media.gmp-gmpopenh264.abi: x86-msvc-x64
media.gmp-gmpopenh264.lastUpdate: 1447366156
media.gmp-gmpopenh264.path: C:\Users\Ste\AppData\Roaming\Mozilla\Firefox\Profiles\gseu436e.Trunk\gmp-gmpopenh264
media.gmp-gmpopenh264.version: 1.5.1
media.gmp-manager.buildID: 20151116030208
media.gmp-manager.lastCheck: 1447698698
media.hardware-video-decoding.failed: false
media.peerconnection.enabled: false
network.cookie.cookieBehavior: 2
network.cookie.prefsMigrated: true
network.http.spdy.enabled.http2draft: false
network.http.speculative-parallel-limit: 0
network.predictor.cleaned-up: true
network.prefetch-next: false
network.protocol-handler.external.ed2k: true
places.database.lastMaintenance: 1447527744
places.history.expiration.transient_current_max_pages: 104858
places.history.expiration.transient_optimal_database_size: 139543674
places.last_vacuum: 1276105802
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
plugin.state.flash: 1
plugin.state.java: 0
plugin.state.npauthz: 0
plugin.state.npbattlelog: 0
plugin.state.npctrl: 0
plugin.state.npdeployjava: 0
plugin.state.npesnlaunch: 0
plugin.state.npesnsonar: 0
plugin.state.npgoogleupdate: 0
plugin.state.npspwrap: 0
plugin.state.npuplaypc: 0
plugin.state.npuplaypchub: 0
print.print_bgcolor: false
print.print_bgimages: false
print.print_command:
print.print_downloadfonts: true
print.print_evenpages: true
print.print_in_color: true
print.print_margin_bottom: 0.5
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print.print_margin_right: 0.5
print.print_margin_top: 0.5
print.print_oddpages: true
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print.print_pagedelay: 500
print.print_paper_data: 0
print.print_paper_height: 11.00
print.print_paper_size: 6815835
print.print_paper_size_type: 1
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print.printer_Microsoft_XPS_Document_Writer.print_bgcolor: false
print.printer_Microsoft_XPS_Document_Writer.print_bgimages: false
print.printer_Microsoft_XPS_Document_Writer.print_colorspace:
print.printer_Microsoft_XPS_Document_Writer.print_command:
print.printer_Microsoft_XPS_Document_Writer.print_downloadfonts: true
print.printer_Microsoft_XPS_Document_Writer.print_duplex: 1515870810
print.printer_Microsoft_XPS_Document_Writer.print_edge_bottom: 0
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print.printer_Microsoft_XPS_Document_Writer.print_evenpages: true
print.printer_Microsoft_XPS_Document_Writer.print_footercenter:
print.printer_Microsoft_XPS_Document_Writer.print_footerleft: &PT
print.printer_Microsoft_XPS_Document_Writer.print_footerright: &D
print.printer_Microsoft_XPS_Document_Writer.print_headercenter:
print.printer_Microsoft_XPS_Document_Writer.print_headerleft: &T
print.printer_Microsoft_XPS_Document_Writer.print_headerright: &U
print.printer_Microsoft_XPS_Document_Writer.print_in_color: true
print.printer_Microsoft_XPS_Document_Writer.print_margin_bottom: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_margin_left: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_margin_right: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_margin_top: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_oddpages: true
print.printer_Microsoft_XPS_Document_Writer.print_orientation: 0
print.printer_Microsoft_XPS_Document_Writer.print_page_delay: 50
print.printer_Microsoft_XPS_Document_Writer.print_paper_data: 0
print.printer_Microsoft_XPS_Document_Writer.print_paper_height: 11.00
print.printer_Microsoft_XPS_Document_Writer.print_paper_name:
print.printer_Microsoft_XPS_Document_Writer.print_paper_size_type: 0
print.printer_Microsoft_XPS_Document_Writer.print_paper_size_unit: 0
print.printer_Microsoft_XPS_Document_Writer.print_paper_width: 8.50
print.printer_Microsoft_XPS_Document_Writer.print_plex_name:
print.printer_Microsoft_XPS_Document_Writer.print_resolution: 1515870810
print.printer_Microsoft_XPS_Document_Writer.print_resolution_name:
print.printer_Microsoft_XPS_Document_Writer.print_reversed: false
print.printer_Microsoft_XPS_Document_Writer.print_scaling: 1.00
print.printer_Microsoft_XPS_Document_Writer.print_shrink_to_fit: true
print.printer_Microsoft_XPS_Document_Writer.print_to_file: false
print.printer_Microsoft_XPS_Document_Writer.print_unwriteable_margin_bottom: 0
print.printer_Microsoft_XPS_Document_Writer.print_unwriteable_margin_left: 0
print.printer_Microsoft_XPS_Document_Writer.print_unwriteable_margin_right: 0
print.printer_Microsoft_XPS_Document_Writer.print_unwriteable_margin_top: 0
privacy.clearOnShutdown.cache: false
privacy.clearOnShutdown.cookies: false
privacy.cpd.cookies: false
privacy.cpd.downloads: false
privacy.cpd.extensions-tabmix: false
privacy.cpd.formdata: false
privacy.cpd.history: false
privacy.cpd.sessions: false
privacy.cpd.siteprefs: false
privacy.donottrackheader.value: 1
privacy.item.cache: false
privacy.popups.showBrowserMessage: false
privacy.sanitize.migrateClearSavedPwdsOnExit: true
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.timeSpan: 0
security.disable_button.changePassword: false
security.disable_button.openCertManager: false
security.disable_button.openDeviceManager: false
security.disable_button.resetPassword: false
security.enable_java: false
security.OCSP.disable_button.managecrl: false
security.OCSP.signingCA: Builtin Object Token:Verisign Class 1 Public Primary OCSP Responder
security.OCSP.URL:
security.password_lifetime: 0
security.sandbox.content.tempDirSuffix: {6f7ec609-b26a-426e-ab81-3f335839ec16}
security.warn_viewing_mixed: false
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1446849618
toolkit.startup.recent_crashes: 3

Important Locked Preferences
----------------------------

JavaScript
----------

Incremental GC: true

Accessibility
-------------

Activated: false
Prevent Accessibility: 0

Library Versions
----------------

NSPR
Expected minimum version: 4.11 Beta
Version in use: 4.11 Beta

NSS
Expected minimum version: 3.21 Basic ECC
Version in use: 3.21 Basic ECC

NSSSMIME
Expected minimum version: 3.21 Basic ECC
Version in use: 3.21 Basic ECC

NSSSSL
Expected minimum version: 3.21 Basic ECC
Version in use: 3.21 Basic ECC

NSSUTIL
Expected minimum version: 3.21
Version in use: 3.21

Experimental Features
---------------------

Comment 7

[u279076]

(In reply to Steve England [:stevee] from comment #6)
> Just got half a dozen crashes doing about:support :-)

Thanks, do these crashes happen in a new Firefox profile? and if not, could you try disabling your add-ons one by one to make sure none of them are causing this to happen?

Comment 8

[Steve England [:stevee]]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 ID:20151116030208 CSet: 48d636f678b0e5162ab868dc9024a5ffe350460c

Welp I can't explain this.

I disabled 8 of my extensions (Menu Editor, Nightly Tester Tools, Nuke Anything Enhanced, Paste & Go 2, Places Maintenance, SPDY Indicator, Tab Mix Plus, Tiny Eye Reverse Image Search, uBlock Origin).

Restarted firefox, Help > Troubleshooting Information didn't crash after multiple opens of the page, and multiple restarts of Firefox.

Re-enabled all those extensions again, and now I am unable to reproduce the crash.

But from above you can see I got 5 crashes in 2 minutes trying to open Help > Troubleshooting Information.

So I don't know what's happened and why it's fixed, but it seems to be. I will keep an eye on it and if it reoccurs take a copy of my profile before trying to find the responsible extension.

Comment 9

[u279076]

(In reply to Steve England [:stevee] from comment #8)
> Re-enabled all those extensions again, and now I am unable to reproduce the crash.

I wonder if there was a pref change when disabling an extension that did not get reverted when the extension was re-enabled. Can you check about:support again and see if anything differs from what you posted in comment 6? Doing a diff on pastebin.mozilla.org might be the simplest way to do that.

Comment 10

[Steve England [:stevee]]

https://pastebin.mozilla.org/?diff=8852321

Crash times different, and the additional of a new line
toolkit.startup.recent_crashes: 3

Comment 11

[u279076]

(In reply to Steve England [:stevee] from comment #10)
> https://pastebin.mozilla.org/?diff=8852321
> 
> Crash times different, and the additional of a new line
> toolkit.startup.recent_crashes: 3

I was hoping it would show some pref changes, I guess not. Hopefully you find a way to reproduce this again.

Comment 12

[Ada [:adalucinet]]

Hit this crash after installing an WebExtension addon and opened about:support page, under Ubuntu 12.04 32-bit → bp-2cecd3c5-614d-4c8f-b7ab-b40682151207
On Mac OS X 10.11, the signature is slightly different using the same STR → bp-1c019de8-197e-4e16-8996-8f1102151207 (already fixed in bug 1218364) 
Maybe this is a dupe of bug 1218364? Steve, could you please check latest Nightly 45.0a1 [1]? Do you still reproduce the crash?

[1] http://ftp.mozilla.org/pub/firefox/nightly/latest-mozilla-central/

Comment 13

[Steve England [:stevee]]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 ID:20151207030210 CSet: 528ea05671e9bd9ccb33d1558a20691a72c85f98

I have been unable to reproduce this crash recently using my normal profile (not tried with a new profile).

Comment 14

[Jeff Muizelaar [:jrmuizel]]

This was probably fixed in bug 1218364