Get this FMM when I run purify. To reproduce it. Just run purify w/ apprunner. It happen before I load any url. [E] FMM: Freeing mismatched memory in free {6 occurrences} Address 0x079f4bd0 points into a C++ new block in heap 0x036b0000 Location of free attempt free [dbgheap.c:925] PR_Free [prmem.c:66] nsAllocatorImpl::Free(void *) [nsAllocator.cpp:89] nsAllocator::Free(void *) [nsAllocator.cpp:154] nsXPCWrappedNativeClass::CallWrappedMethod(JSContext *,nsXPCWrappedNative *,XPCNativeMemberDescriptor const*,int,UINT,long *,long *) [xpcwrappednativeclass.cpp:623] nsXPCWrappedNativeClass::GetAttributeAsJSVal(JSContext *,nsXPCWrappedNative *,XPCNativeMemberDescriptor const*,long *) [xpcprivate.h:483] WrappedNative_GetProperty [xpcwrappednativeclass.cpp:730] js_Interpret [jsinterp.c:2155] js_Invoke [jsinterp.c:666] js_Interpret [jsinterp.c:2199] Allocation location new(UINT) [new.cpp:23] nsXPIDLCString::Copy(char const*) [nsXPIDLString.cpp:133] nsRDFResource::GetValue(char * *) [nsRDFResource.cpp:140] XPTC_InvokeByIndex [xptcinvoke.cpp:133] nsXPCWrappedNativeClass::CallWrappedMethod(JSContext *,nsXPCWrappedNative *,XPCNativeMemberDescriptor const*,int,UINT,long *,long *) [xpcwrappednativeclass.cpp:539] nsXPCWrappedNativeClass::GetAttributeAsJSVal(JSContext *,nsXPCWrappedNative *,XPCNativeMemberDescriptor const*,long *) [xpcprivate.h:483] WrappedNative_GetProperty [xpcwrappednativeclass.cpp:730] js_Interpret [jsinterp.c:2155] js_Invoke [jsinterp.c:666] js_Interpret [jsinterp.c:2199]

*** This bug has been marked as a duplicate of 5671 ***

Changing component to "Javascript Engine". "Javascript" component is being retired.

Verified Dup