Seen in the browser/components/feeds/test directory. Maybe related to bug 1237166? https://treeherder.mozilla.org/logviewer.html#?job_id=155433&repo=ash 07:05:45 INFO - ==2086==ERROR: LeakSanitizer: detected memory leaks 07:05:45 INFO - Indirect leak of 2048 byte(s) in 1 object(s) allocated from: 07:05:45 INFO - #0 0x4722f1 in calloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:90 07:05:45 INFO - #1 0x48bb31 in moz_xcalloc /builds/slave/ash-l64-asan-00000000000000000/build/src/memory/mozalloc/mozalloc.cpp:94 07:05:45 INFO - #2 0x7fdcd8f453b7 in NewPage /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsEventQueue.h:82 07:05:45 INFO - #3 0x7fdcd8f453b7 in nsEventQueue::PutEvent(already_AddRefed<nsIRunnable>&&, mozilla::BaseAutoLock<mozilla::Mutex>&) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsEventQueue.cpp:86 07:05:45 INFO - #4 0x7fdcd8f4aa0a in take /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThread.h:139 07:05:45 INFO - #5 0x7fdcd8f4aa0a in nsThread::PutEvent(already_AddRefed<nsIRunnable>&&, nsThread::nsNestedEventTarget*) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThread.cpp:586 07:05:45 INFO - #6 0x7fdcd8f4aeae in nsThread::DispatchInternal(already_AddRefed<nsIRunnable>&&, unsigned int, nsThread::nsNestedEventTarget*) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThread.cpp:655 07:05:45 INFO - Indirect leak of 664 byte(s) in 1 object(s) allocated from: 07:05:45 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:45 INFO - #1 0x48b8dd in moz_xmalloc /builds/slave/ash-l64-asan-00000000000000000/build/src/memory/mozalloc/mozalloc.cpp:83 07:05:45 INFO - #2 0x7fdcd918bd23 in operator new /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/mozalloc.h:186 07:05:45 INFO - #3 0x7fdcd918bd23 in nsSocketTransportService::CreateRoutedTransport(char const**, unsigned int, nsACString_internal const&, int, nsACString_internal const&, int, nsIProxyInfo*, nsISocketTransport**) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransportService2.cpp:702 07:05:45 INFO - #4 0x7fdcd9643924 in mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams(nsISocketTransport**, nsIAsyncInputStream**, nsIAsyncOutputStream**, bool) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/protocol/http/nsHttpConnectionMgr.cpp:3040 07:05:45 INFO - #5 0x7fdcd96401e5 in mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupPrimaryStreams() /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/protocol/http/nsHttpConnectionMgr.cpp:3142 07:05:45 INFO - Indirect leak of 208 byte(s) in 1 object(s) allocated from: 07:05:45 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:45 INFO - #1 0x48b8dd in moz_xmalloc /builds/slave/ash-l64-asan-00000000000000000/build/src/memory/mozalloc/mozalloc.cpp:83 07:05:45 INFO - #2 0x7fdcd8f50b4a in operator new /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/mozalloc.h:186 07:05:45 INFO - #3 0x7fdcd8f50b4a in nsThreadManager::NewThread(unsigned int, unsigned int, nsIThread**) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThreadManager.cpp:252 07:05:45 INFO - #4 0x7fdcd8fc5638 in NS_NewThread(nsIThread**, nsIRunnable*, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/glue/nsThreadUtils.cpp:71 07:05:45 INFO - #5 0x7fdcd9189f6b in nsSocketTransportService::Init() /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransportService2.cpp:535 07:05:45 INFO - Indirect leak of 168 byte(s) in 1 object(s) allocated from: 07:05:45 INFO - #0 0x4722f1 in calloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:90 07:05:45 INFO - #1 0x7fdcf4a87d7b in PR_NewLock /builds/slave/ash-l64-asan-00000000000000000/build/src/nsprpub/pr/src/pthreads/ptsynch.c:142 07:05:45 INFO - #2 0x7fdcd9223948 in OffTheBooksMutex /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/Mutex.h:49 07:05:46 INFO - #3 0x7fdcd9223948 in ThreadSafeAutoRefCnt /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/Mutex.h:125 07:05:46 INFO - #4 0x7fdcd9223948 in nsHostRecord::nsHostRecord(nsHostKey const*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/dns/nsHostResolver.cpp:177 07:05:46 INFO - #5 0x7fdcd922fc13 in Create /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/dns/nsHostResolver.cpp:199 07:05:46 INFO - #6 0x7fdcd922fc13 in HostDB_InitEntry(PLDHashEntryHdr*, void const*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/dns/nsHostResolver.cpp:482 07:05:46 INFO - #7 0x7fdcd8fa52ad in PLDHashTable::Add(void const*, mozilla::fallible_t const&) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/glue/PLDHashTable.cpp:582 07:05:46 INFO - Indirect leak of 168 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4722f1 in calloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:90 07:05:46 INFO - #1 0x7fdcf4a87d7b in PR_NewLock /builds/slave/ash-l64-asan-00000000000000000/build/src/nsprpub/pr/src/pthreads/ptsynch.c:142 07:05:46 INFO - #2 0x7fdcd9171f47 in OffTheBooksMutex /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/Mutex.h:49 07:05:46 INFO - #3 0x7fdcd9171f47 in nsASocketHandler /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/Mutex.h:125 07:05:46 INFO - #4 0x7fdcd9171f47 in nsSocketTransport::nsSocketTransport() /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransport2.cpp:761 07:05:46 INFO - #5 0x7fdcd918bd2e in nsSocketTransportService::CreateRoutedTransport(char const**, unsigned int, nsACString_internal const&, int, nsACString_internal const&, int, nsIProxyInfo*, nsISocketTransport**) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransportService2.cpp:702 07:05:46 INFO - #6 0x7fdcd9643924 in mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams(nsISocketTransport**, nsIAsyncInputStream**, nsIAsyncOutputStream**, bool) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/protocol/http/nsHttpConnectionMgr.cpp:3040 07:05:46 INFO - Indirect leak of 168 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4722f1 in calloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:90 07:05:46 INFO - #1 0x7fdcf4a87d7b in PR_NewLock /builds/slave/ash-l64-asan-00000000000000000/build/src/nsprpub/pr/src/pthreads/ptsynch.c:142 07:05:46 INFO - #2 0x7fdcd8f497e1 in OffTheBooksMutex /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/Mutex.h:49 07:05:46 INFO - #3 0x7fdcd8f497e1 in nsISupportsPriority /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/Mutex.h:125 07:05:46 INFO - #4 0x7fdcd8f497e1 in nsThread::nsThread(nsThread::MainThreadFlag, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThread.cpp:495 07:05:46 INFO - #5 0x7fdcd8f50b5d in nsThreadManager::NewThread(unsigned int, unsigned int, nsIThread**) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThreadManager.cpp:252 07:05:46 INFO - #6 0x7fdcd8fc5638 in NS_NewThread(nsIThread**, nsIRunnable*, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/glue/nsThreadUtils.cpp:71 07:05:46 INFO - Indirect leak of 164 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:46 INFO - #1 0x48b8dd in moz_xmalloc /builds/slave/ash-l64-asan-00000000000000000/build/src/memory/mozalloc/mozalloc.cpp:83 07:05:46 INFO - #2 0x7fdcd922fbfe in operator new /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/mozalloc.h:186 07:05:46 INFO - #3 0x7fdcd922fbfe in Create /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/dns/nsHostResolver.cpp:198 07:05:46 INFO - #4 0x7fdcd922fbfe in HostDB_InitEntry(PLDHashEntryHdr*, void const*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/dns/nsHostResolver.cpp:482 07:05:46 INFO - #5 0x7fdcd8fa52ad in PLDHashTable::Add(void const*, mozilla::fallible_t const&) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/glue/PLDHashTable.cpp:582 07:05:46 INFO - #6 0x7fdcd9227b97 in nsHostResolver::ResolveHost(char const*, unsigned short, unsigned short, char const*, nsResolveHostCallback*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/dns/nsHostResolver.cpp:762 07:05:46 INFO - Indirect leak of 64 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:46 INFO - #1 0x7fdcf4a88453 in PR_NewCondVar /builds/slave/ash-l64-asan-00000000000000000/build/src/nsprpub/pr/src/pthreads/ptsynch.c:321 07:05:46 INFO - #2 0x7fdcd8f499a3 in CondVar /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/CondVar.h:47 07:05:46 INFO - #3 0x7fdcd8f499a3 in nsEventQueue /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsEventQueue.cpp:28 07:05:46 INFO - #4 0x7fdcd8f499a3 in nsISupportsPriority /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThread.h:122 07:05:46 INFO - #5 0x7fdcd8f499a3 in nsThread::nsThread(nsThread::MainThreadFlag, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThread.cpp:495 07:05:46 INFO - #6 0x7fdcd8f50b5d in nsThreadManager::NewThread(unsigned int, unsigned int, nsIThread**) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/threads/nsThreadManager.cpp:252 07:05:46 INFO - #7 0x7fdcd8fc5638 in NS_NewThread(nsIThread**, nsIRunnable*, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/glue/nsThreadUtils.cpp:71 07:05:46 INFO - Indirect leak of 48 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:46 INFO - #1 0x48b8dd in moz_xmalloc /builds/slave/ash-l64-asan-00000000000000000/build/src/memory/mozalloc/mozalloc.cpp:83 07:05:46 INFO - #2 0x7fdcd8e4b7d3 in operator new /builds/slave/ash-l64-asan-00000000000000000/build/src/obj-firefox/dist/include/mozilla/mozalloc.h:186 07:05:46 INFO - #3 0x7fdcd8e4b7d3 in NS_NewInterfaceRequestorAggregation(nsIInterfaceRequestor*, nsIInterfaceRequestor*, nsIEventTarget*, nsIInterfaceRequestor**) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/base/nsInterfaceRequestorAgg.cpp:80 07:05:46 INFO - #4 0x7fdcd912b56c in NS_NewNotificationCallbacksAggregation(nsIInterfaceRequestor*, nsILoadGroup*, nsIEventTarget*, nsIInterfaceRequestor**) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsNetUtil.cpp:1483 07:05:46 INFO - #5 0x7fdcd917f4b2 in nsSocketTransport::SetSecurityCallbacks(nsIInterfaceRequestor*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransport2.cpp:2270 07:05:46 INFO - Indirect leak of 19 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:46 INFO - #1 0x7fdcd8dfc6c4 in Alloc /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/string/nsSubstring.cpp:217 07:05:46 INFO - #2 0x7fdcd8dfc6c4 in nsACString_internal::MutatePrep(unsigned int, char**, unsigned int*) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/string/nsTSubstring.cpp:133 07:05:46 INFO - #3 0x7fdcd8e0578e in nsACString_internal::ReplacePrepInternal(unsigned int, unsigned int, unsigned int, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/string/nsTSubstring.cpp:195 07:05:46 INFO - #4 0x7fdcd8e05672 in nsACString_internal::ReplacePrep(unsigned int, unsigned int, unsigned int) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/string/nsTSubstring.cpp:185 07:05:46 INFO - #5 0x7fdcd8e061df in nsACString_internal::Assign(char const*, unsigned int, mozilla::fallible_t const&) /builds/slave/ash-l64-asan-00000000000000000/build/src/xpcom/string/nsTSubstring.cpp:342 07:05:46 INFO - Indirect leak of 8 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:46 INFO - #1 0x7fdcd9173759 in nsSocketTransport::Init(char const**, unsigned int, nsACString_internal const&, unsigned short, nsACString_internal const&, unsigned short, nsIProxyInfo*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransport2.cpp:848 07:05:46 INFO - #2 0x7fdcd918bd7c in nsSocketTransportService::CreateRoutedTransport(char const**, unsigned int, nsACString_internal const&, int, nsACString_internal const&, int, nsIProxyInfo*, nsISocketTransport**) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransportService2.cpp:703 07:05:46 INFO - #3 0x7fdcd9643924 in mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams(nsISocketTransport**, nsIAsyncInputStream**, nsIAsyncOutputStream**, bool) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/protocol/http/nsHttpConnectionMgr.cpp:3040 07:05:46 INFO - #4 0x7fdcd96401e5 in mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupPrimaryStreams() /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/protocol/http/nsHttpConnectionMgr.cpp:3142 07:05:46 INFO - Indirect leak of 4 byte(s) in 1 object(s) allocated from: 07:05:46 INFO - #0 0x4721e1 in malloc /builds/slave/moz-toolchain/src/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74 07:05:46 INFO - #1 0x7fdcf4814b9d in PL_strdup /builds/slave/ash-l64-asan-00000000000000000/build/src/nsprpub/lib/libc/src/strdup.c:21 07:05:46 INFO - #2 0x7fdcd917386e in nsSocketTransport::Init(char const**, unsigned int, nsACString_internal const&, unsigned short, nsACString_internal const&, unsigned short, nsIProxyInfo*) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransport2.cpp:858 07:05:46 INFO - #3 0x7fdcd918bd7c in nsSocketTransportService::CreateRoutedTransport(char const**, unsigned int, nsACString_internal const&, int, nsACString_internal const&, int, nsIProxyInfo*, nsISocketTransport**) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/base/nsSocketTransportService2.cpp:703 07:05:46 INFO - #4 0x7fdcd9643924 in mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams(nsISocketTransport**, nsIAsyncInputStream**, nsIAsyncOutputStream**, bool) /builds/slave/ash-l64-asan-00000000000000000/build/src/netwerk/protocol/http/nsHttpConnectionMgr.cpp:3040 07:05:46 INFO - ----------------------------------------------------- 07:05:46 INFO - Suppressions used: 07:05:46 INFO - count bytes template 07:05:46 INFO - 40 986 libc.so 07:05:46 INFO - 838 26760 nsComponentManagerImpl 07:05:46 INFO - 51 6936 mozJSComponentLoader::LoadModule 07:05:46 INFO - 1 384 pixman_implementation_lookup_composite 07:05:46 INFO - 360 15936 libfontconfig.so 07:05:46 INFO - 1 104 nsDNSService::AsyncResolveExtended 07:05:46 INFO - 2 64 libdl.so 07:05:46 INFO - 26 6492 libglib-2.0.so 07:05:46 INFO - 4 112 libresolv.so 07:05:46 INFO - ----------------------------------------------------- 07:05:46 INFO - SUMMARY: AddressSanitizer: 3731 byte(s) leaked in 12 allocation(s). 07:05:46 INFO - TEST-INFO | Main app process: exit 0 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at PR_NewLock, OffTheBooksMutex, ThreadSafeAutoRefCnt, nsHostRecord::nsHostRecord 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at Alloc, nsACString_internal::MutatePrep, nsACString_internal::ReplacePrepInternal, nsACString_internal::ReplacePrep 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at nsSocketTransport::Init, nsSocketTransportService::CreateRoutedTransport, mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams, mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupPrimaryStreams 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at PR_NewCondVar, CondVar, nsEventQueue, nsISupportsPriority 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at PL_strdup, nsSocketTransport::Init, nsSocketTransportService::CreateRoutedTransport, mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at Create, HostDB_InitEntry, PLDHashTable::Add, nsHostResolver::ResolveHost 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at nsThreadManager::NewThread, NS_NewThread, nsSocketTransportService::Init 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at nsSocketTransportService::CreateRoutedTransport, mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupStreams, mozilla::net::nsHttpConnectionMgr::nsHalfOpenSocket::SetupPrimaryStreams 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at PR_NewLock, OffTheBooksMutex, nsISupportsPriority, nsThread::nsThread 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at NS_NewInterfaceRequestorAggregation, NS_NewNotificationCallbacksAggregation, nsSocketTransport::SetSecurityCallbacks 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at NewPage, nsEventQueue::PutEvent, take, nsThread::PutEvent 07:05:46 WARNING - TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at PR_NewLock, OffTheBooksMutex, nsASocketHandler, nsSocketTransport::nsSocketTransport

The interesting stuff that is leaking looks like: nsEventQueue::Page, nsSocketTransport, nsThread, something related to nsHostRecord, nsInterfaceRequestorAgg

Bulk assigning P3 to all open intermittent bugs without a priority set in Firefox components per bug 1298978.

clearing needinfo flag.

Bulk change to priority: https://bugzilla.mozilla.org/show_bug.cgi?id=1399258

Bulk change to priority: https://bugzilla.mozilla.org/show_bug.cgi?id=1399258