lldb aarch64 firefox tab

    frame #0: 0x000008a54e146010
->  0x8a54e146010: sub    sp, x28, #0x8
    0x8a54e146014: str    x30, [x28, #-0x8]!
    0x8a54e146018: sub    sp, x28, #0x8
    0x8a54e14601c: str    x29, [x28, #-0x8]!
(lldb) bt
* thread #1, name = 'WebExtensions', stop reason = signal SIGILL: illegal trap
  * frame #0: 0x000008a54e146010
    frame #1: 0x000008a54e1167a0
    frame #2: 0x000000004a0b6db4 libxul.so`js::jit::MaybeEnterJit(JSContext*, js::RunState&) + 576
    frame #3: 0x0000000049a0e4c4 libxul.so`js::RunScript(JSContext*, js::RunState&) + 604
    frame #4: 0x0000000049a0e8e4 libxul.so`js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct, js::CallReason) + 1036
    frame #5: 0x0000000049a0ed80 libxul.so`js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>, js::CallReason) + 212
    frame #6: 0x0000000049a698a0 libxul.so`JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) + 236
    frame #7: 0x0000000046f8f254 libxul.so`mozilla::dom::MessageListener::ReceiveMessage(mozilla::dom::BindingCallContext&, JS::Handle<JS::Value>, mozilla::dom::ReceiveMessageArgument const&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) + 788
    frame #8: 0x000000004874d3fc libxul.so`mozilla::dom::JSActor::CallReceiveMessage(JSContext*, mozilla::dom::JSActorMessageMeta const&, JS::Handle<JS::Value>, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) + 496
    frame #9: 0x000000004874d688 libxul.so`mozilla::dom::JSActor::ReceiveMessage(JSContext*, mozilla::dom::JSActorMessageMeta const&, JS::Handle<JS::Value>, mozilla::ErrorResult&) + 252
    frame #10: 0x000000004874fb50 libxul.so`mozilla::dom::JSActorManager::ReceiveRawMessage(mozilla::dom::JSActorMessageMeta const&, mozilla::Maybe<mozilla::dom::ipc::StructuredCloneData>&&, mozilla::Maybe<mozilla::dom::ipc::StructuredCloneData>&&) + 704
    frame #11: 0x0000000048652e00 libxul.so`mozilla::dom::WindowGlobalChild::RecvRawMessage(mozilla::dom::JSActorMessageMeta const&, mozilla::Maybe<mozilla::dom::ClonedMessageData> const&, mozilla::Maybe<mozilla::dom::ClonedMessageData> const&) + 368
    frame #12: 0x000000004873d910 libxul.so`mozilla::dom::PWindowGlobalChild::OnMessageReceived(IPC::Message const&) + 4140
    frame #13: 0x00000000486bfaa0 libxul.so`mozilla::dom::PContentChild::OnMessageReceived(IPC::Message const&) + 700
    frame #14: 0x00000000464cdf50 libxul.so`mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&) + 200
    frame #15: 0x00000000464cd090 libxul.so`mozilla::ipc::MessageChannel::DispatchMessage(mozilla::ipc::ActorLifecycleProxy*, mozilla::UniquePtr<IPC::Message, mozilla::DefaultDelete<IPC::Message>>) + 324
    frame #16: 0x00000000464cd408 libxul.so`mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::ActorLifecycleProxy*, mozilla::ipc::MessageChannel::MessageTask&) + 264
    frame #17: 0x00000000464cd8fc libxul.so`mozilla::ipc::MessageChannel::MessageTask::Run() + 148
    frame #18: 0x0000000045f607f4 libxul.so`mozilla::RunnableTask::Run() + 32
    frame #19: 0x0000000045f5dc14 libxul.so`mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) + 1600
    frame #20: 0x0000000045f5cc20 libxul.so`mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) + 52
    frame #21: 0x0000000045f5ced0 libxul.so`mozilla::TaskController::ProcessPendingMTTask(bool) + 80
    frame #22: 0x0000000045f62dc8 libxul.so`mozilla::detail::RunnableFunction<mozilla::TaskController::TaskController()::$_4>::Run() + 24
    frame #23: 0x0000000045f7060c libxul.so`nsThread::ProcessNextEvent(bool, bool*) + 968
    frame #24: 0x0000000045f74d2c libxul.so`NS_ProcessNextEvent(nsIThread*, bool) + 92
    frame #25: 0x00000000464d092c libxul.so`mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) + 232
    frame #26: 0x00000000464874d8 libxul.so`MessageLoop::Run() + 92
    frame #27: 0x0000000048ab4aa8 libxul.so`nsBaseAppShell::Run() + 48
    frame #28: 0x0000000049941c64 libxul.so`XRE_RunAppShell() + 100
    frame #29: 0x00000000464874d8 libxul.so`MessageLoop::Run() + 92
    frame #30: 0x0000000049941a20 libxul.so`XRE_InitChildProcess(int, char**, XREChildData const*) + 1184
    frame #31: 0x0000000000132574 firefox-bin`main + 780
    frame #32: 0x0000000040500578 libc.so.7`__libc_start1(argc=22, argv=0x0000ffffffffe5d8, env=0x0000ffffffffe690, cleanup=<unavailable>, mainX=(firefox-bin`main)) at libc_start1.c:157:7
    frame #33: 0x0000000000132134 firefox-bin`_start at crt1_s.S:60