1) Launch the JAWS screen reader 2) Run Firefox in Visual Studio 3) Try to exit Firefox You will get this crash: First-chance exception at 0x03a24bfa in firefox.exe: 0xC0000005: Access violation writing location 0x8007ef50. At this stack: > kernel32.dll!_RaiseException@16() + 0x53 bytes rpcrt4.dll!_RpcpRaiseException@4() + 0x21 bytes rpcrt4.dll!_NdrProxySendReceive@8() + 0x112c bytes rpcrt4.dll!_NdrClientCall2() + 0x9dc bytes rpcrt4.dll!_ObjectStublessClient@8() + 0x5d bytes rpcrt4.dll!_ObjectStubless@0() + 0xf bytes FsDomSrv.dll!058d95b7() [Frames below may be incorrect and/or missing, no symbols loaded for FsDomSrv.dll] FsDomSrv.dll!058c2933() FsDomSrv.dll!058dcb07() FsDomSrv.dll!058dcb4d() FsDomSrv.dll!058dcb3f() ole32.dll!CStdIdentity::ReleaseCtrlUnk() + 0x46 bytes ole32.dll!CStdMarshal::Disconnect() + 0x1d6 bytes ole32.dll!CStdMarshal::HandlePendingDisconnect() + 0x461c bytes ole32.dll!CRemoteUnknown::RemReleaseWorker() + 0x155 bytes ole32.dll!CRemoteUnknown::RemRelease() + 0x15 bytes rpcrt4.dll!_Invoke@12() + 0x30 bytes rpcrt4.dll!_NdrStubCall2@16() + 0x215 bytes rpcrt4.dll!_CStdStubBuffer_Invoke@12() + 0x82 bytes ole32.dll!SyncStubInvoke() + 0x33 bytes ole32.dll!StubInvoke() + 0x73 bytes ole32.dll!CCtxComChnl::ContextInvoke() + 0xd2 bytes ole32.dll!MTAInvoke() + 0x1a bytes ole32.dll!STAInvoke() + 0x4e bytes ole32.dll!AppInvoke() + 0x3a0 bytes ole32.dll!ComInvokeWithLockAndIPID() + 0x23d bytes ole32.dll!ComInvoke() + 0x5a bytes ole32.dll!ThreadDispatch() + 0x1a bytes ole32.dll!ThreadWndProc() + 0x93 bytes user32.dll!_InternalCallWinProc@20() + 0x28 bytes user32.dll!_UserCallWinProcCheckWow@32() + 0xb7 bytes user32.dll!_DispatchMessageWorker@8() + 0xdc bytes user32.dll!_DispatchMessageW@4() + 0xf bytes gkwidget.dll!nsAppShell::ProcessNextNativeEvent(int mayWait=0x00000001) Line 149 C++ gkwidget.dll!nsBaseAppShell::DoProcessNextNativeEvent(int mayWait=0x00000001) Line 137 + 0x11 bytes C++ gkwidget.dll!nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal * thr=0x00d8ff70, int mayWait=0x00000001, unsigned int recursionDepth=0x00000000) Line 247 + 0xf bytes C++ xpcom_core.dll!nsThread::ProcessNextEvent(int mayWait=0x00000001, int * result=0x0012fa00) Line 480 C++ xpcom_core.dll!NS_ProcessNextEvent_P(nsIThread * thread=0x00d8ff70, int mayWait=0x00000001) Line 227 + 0x16 bytes C++ gkwidget.dll!nsBaseAppShell::Run() Line 154 + 0xc bytes C++ tkitcmps.dll!nsAppStartup::Run() Line 170 + 0x1c bytes C++ xul.dll!XRE_main(int argc=0x00000004, char * * argv=0x00d8af30, const nsXREAppData * aAppData=0x00d8b398) Line 3060 + 0x25 bytes C++ firefox.exe!main(int argc=0x00000004, char * * argv=0x00d8af30) Line 153 + 0x12 bytes C++ firefox.exe!__tmainCRTStartup() Line 586 + 0x19 bytes C firefox.exe!mainCRTStartup() Line 403 C kernel32.dll!_BaseProcessStart@4() + 0x23 bytes

Step 3 was wrong, it should say: 3. Exit JAWS (Insert+F4)

Before the access violation I get: "First-chance exception at 0x7c812a5b (kernel32.dll) in firefox.exe: 0x80010108: The object invoked has disconnected from its clients." The exception's code matches RPC_E_DISCONNECTED. I haven't found anything useful about it by searching the net. This only happens when you run in the debugger. Therefore, not a blocker.

Per comment #2, -'ing.

Mass un-assigning bugs assigned to Aaron.

Is thisstill a problem?

I've never seen a problem and can't see it on trunk.