Can confirm this behaviour on Ubuntu 14.04. I'm using Firefox 39 with only one addon (ublock origin) and all plugins either disabled or set to ask for permission to run. Experiencing crashes in both Firefox 39 and Firefox 40 Developer Edition, but Firefox 38 is fine.
Playing flashplayer video for 0 - 20 seconds is a guaranteed way to crash Firefox 39, but it also can happen on pages with no flash content and with flashplayer completely disabled. In fact, it can even happen on pages with no HTML content at all (eg. a .png image) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1474003 Title: Firefox 39 keeps crashing Status in firefox package in Ubuntu: Confirmed Bug description: Firefox 39 keeps crashing after update from Firefox 38. Crashes are random but when idle happens at least once a hour or more frequently when actively used. When replaced with binaries from Mozilla there is no problems at same machine with same profile. There are at least 1100 identical reports and they seems to be unique for Ubuntu build. Below is part of crash report: Crashing Thread Frame Module Signature Source 0 libxul.so mozilla::dom::CrashReporterParent::GenerateChildData /build/firefox-4CFcvq/firefox-39.0+build5/dom/ipc/CrashReporterParent.cpp:114 1 libxul.so mozilla::plugins::PluginModuleChromeParent::ProcessFirstMinidump /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/ipc/PluginModuleParent.cpp:1415 2 libxul.so mozilla::plugins::PluginModuleChromeParent::ActorDestroy /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/ipc/PluginModuleParent.cpp:1503 3 libxul.so mozilla::plugins::PPluginModuleParent::DestroySubtree /build/firefox-4CFcvq/firefox-39.0+build5/obj-x86_64-linux-gnu/ipc/ipdl/PPluginModuleParent.cpp:1588 4 libxul.so mozilla::plugins::PPluginModuleParent::OnChannelError /build/firefox-4CFcvq/firefox-39.0+build5/obj-x86_64-linux-gnu/ipc/ipdl/PPluginModuleParent.cpp:1462 5 libxul.so mozilla::ipc::MessageChannel::NotifyMaybeChannelError /build/firefox-4CFcvq/firefox-39.0+build5/ipc/glue/MessageChannel.cpp:1622 6 libxul.so mozilla::ipc::MessageChannel::Close /build/firefox-4CFcvq/firefox-39.0+build5/ipc/glue/MessageChannel.cpp:1744 7 libxul.so mozilla::plugins::PluginModuleParent::DoShutdown /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/ipc/PluginModuleParent.cpp:2326 8 libxul.so mozilla::plugins::PluginModuleParent::NP_Shutdown /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/ipc/PluginModuleParent.cpp:2307 9 libxul.so mozilla::plugins::PluginModuleChromeParent::~PluginModuleChromeParent /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/ipc/PluginModuleParent.cpp:705 10 libxul.so mozilla::plugins::PluginModuleChromeParent::~PluginModuleChromeParent /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/ipc/PluginModuleParent.cpp:741 11 libxul.so nsNPAPIPlugin::~nsNPAPIPlugin /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/base/nsNPAPIPlugin.cpp:237 12 libxul.so nsNPAPIPlugin::~nsNPAPIPlugin /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/base/nsNPAPIPlugin.cpp:239 13 libxul.so nsNPAPIPlugin::Release /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/base/nsNPAPIPlugin.cpp:224 14 libxul.so nsPluginHost::Notify /build/firefox-4CFcvq/firefox-39.0+build5/dom/plugins/base/nsPluginHost.cpp:3716 15 libxul.so nsTimerImpl::Fire /build/firefox-4CFcvq/firefox-39.0+build5/xpcom/threads/nsTimerImpl.cpp:634 16 libxul.so nsTimerEvent::Run /build/firefox-4CFcvq/firefox-39.0+build5/xpcom/threads/nsTimerImpl.cpp:724 17 libxul.so nsThread::ProcessNextEvent /build/firefox-4CFcvq/firefox-39.0+build5/xpcom/threads/nsThread.cpp:855 18 libxul.so NS_ProcessNextEvent /build/firefox-4CFcvq/firefox-39.0+build5/xpcom/glue/nsThreadUtils.cpp:265 19 libxul.so mozilla::ipc::MessagePump::Run /build/firefox-4CFcvq/firefox-39.0+build5/ipc/glue/MessagePump.cpp:140 20 libxul.so MessageLoop::Run /build/firefox-4CFcvq/firefox-39.0+build5/ipc/chromium/src/base/message_loop.cc:226 21 libxul.so nsBaseAppShell::Run /build/firefox-4CFcvq/firefox-39.0+build5/widget/nsBaseAppShell.cpp:164 22 libxul.so nsAppStartup::Run /build/firefox-4CFcvq/firefox-39.0+build5/toolkit/components/startup/nsAppStartup.cpp:281 23 libxul.so XREMain::XRE_mainRun /build/firefox-4CFcvq/firefox-39.0+build5/toolkit/xre/nsAppRunner.cpp:4170 24 libxul.so XREMain::XRE_main /build/firefox-4CFcvq/firefox-39.0+build5/toolkit/xre/nsAppRunner.cpp:4250 25 libxul.so XRE_main /build/firefox-4CFcvq/firefox-39.0+build5/toolkit/xre/nsAppRunner.cpp:4469 26 firefox do_main /build/firefox-4CFcvq/firefox-39.0+build5/browser/app/nsBrowserApp.cpp:294 27 firefox main /build/firefox-4CFcvq/firefox-39.0+build5/browser/app/nsBrowserApp.cpp:667 28 libc-2.19.so __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287 Ø 29 libstdc++.so.6.0.19 libstdc++.so.6.0.19@0x2ee4bf 30 firefox _init 31 firefox _GLOBAL__sub_I_SSE.cpp /build/firefox-4CFcvq/firefox-39.0+build5/mozglue/build/SSE.cpp:146 32 @0x7ffe8ecf056f 33 ld-2.19.so _dl_init /build/buildd/eglibc-2.19/elf/dl-init.c:36 34 firefox _GLOBAL__sub_I_SSE.cpp /build/firefox-4CFcvq/firefox-39.0+build5/mozglue/build/SSE.cpp:146 35 @0x7ffe8ecf056f 36 firefox _start 37 @0x7ffe8ecf0567 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1474003/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
