diff --git a/ipc/app/MozillaRuntimeMain.cpp b/ipc/app/MozillaRuntimeMain.cpp
index 1fb1212176de..917656d1c6ec 100644
--- a/ipc/app/MozillaRuntimeMain.cpp
+++ b/ipc/app/MozillaRuntimeMain.cpp
@@ -54,7 +54,7 @@
 int
 main(int argc, char* argv[])
 {
-#if defined(MOZ_CRASHREPORTER)
+#if defined(MOZ_CRASHREPORTER) && !defined(XP_MACOSX)
     if (argc < 2)
         return 1;
     const char* const crashReporterArg = argv[--argc];
diff --git a/ipc/glue/GeckoChildProcessHost.cpp b/ipc/glue/GeckoChildProcessHost.cpp
index 856bb277de36..58beb1d1e821 100644
--- a/ipc/glue/GeckoChildProcessHost.cpp
+++ b/ipc/glue/GeckoChildProcessHost.cpp
@@ -215,7 +215,7 @@ GeckoChildProcessHost::PerformAsyncLaunch(std::vector<std::string> aExtraOpts)
   childArgv.push_back(pidstring);
   childArgv.push_back(childProcessType);
 
-#if defined(MOZ_CRASHREPORTER)
+#if defined(MOZ_CRASHREPORTER) && !defined(XP_MACOSX)
   int childCrashFd, childCrashRemapFd;
   if (!CrashReporter::CreateNotificationPipeForChild(
         &childCrashFd, &childCrashRemapFd))
diff --git a/toolkit/crashreporter/nsExceptionHandler.cpp b/toolkit/crashreporter/nsExceptionHandler.cpp
index 80a9f19f0521..c7cab6915b8e 100644
--- a/toolkit/crashreporter/nsExceptionHandler.cpp
+++ b/toolkit/crashreporter/nsExceptionHandler.cpp
@@ -97,8 +97,10 @@
 #if defined(MOZ_IPC)
 #include "nsIUUIDGenerator.h"
 
+#if !defined(XP_MACOSX)
 using google_breakpad::CrashGenerationServer;
 using google_breakpad::ClientInfo;
+#endif
 
 using mozilla::Mutex;
 using mozilla::MutexAutoLock;
@@ -171,8 +173,10 @@ static nsCString* crashReporterAPIData = nsnull;
 static nsCString* notesField = nsnull;
 
 #if defined(MOZ_IPC)
+#if !defined(XP_MACOSX)
 // OOP crash reporting
 static CrashGenerationServer* crashServer; // chrome process has this
+#endif
 
 #  if defined(XP_WIN)
 // If crash reporting is disabled, we hand out this "null" pipe to the
@@ -1397,6 +1401,7 @@ MoveToPending(nsIFile* dumpFile, nsIFile* extraFile)
     NS_SUCCEEDED(extraFile->MoveTo(pendingDir, EmptyString()));
 }
 
+#if !defined(XP_MACOSX)
 static void
 OnChildProcessDumpRequested(void* aContext,
                             const ClientInfo* aClientInfo,
@@ -1423,11 +1428,16 @@ OnChildProcessDumpRequested(void* aContext,
     pidToMinidump->Put(pid, minidump);
   }
 }
+#endif  // XP_MACOSX
 
 static bool
 OOPInitialized()
 {
+#if defined(XP_MACOSX)
+  return true;
+#else
   return crashServer != NULL;
+#endif
 }
 
 static void
@@ -1467,8 +1477,10 @@ OOPInit()
     &dumpPath);
 #endif
 
+#if !defined(XP_MACOSX)
   if (!crashServer->Start())
     NS_RUNTIMEABORT("can't start crash reporter server()");
+#endif
 
   pidToMinidump = new ChildMinidumpMap();
   pidToMinidump->Init();
@@ -1484,8 +1496,10 @@ OOPDeinit()
     return;
   }
 
+#if !defined(XP_MACOSX)
   delete crashServer;
   crashServer = NULL;
+#endif
 
   delete dumpMapLock;
   dumpMapLock = NULL;
@@ -1538,7 +1552,7 @@ SetRemoteExceptionHandler(const nsACString& crashPipe)
 }
 
 //--------------------------------------------------
-#elif defined(XP_UNIX)
+#elif defined(XP_LINUX)
 
 // Parent-side API for children
 bool
@@ -1641,6 +1655,10 @@ CreatePairedMinidumps(ProcessHandle childPid,
   if (!GetEnabled())
     return false;
 
+#if defined(XP_MACOSX)
+  return false;
+#else
+
   // create the UUID for the hang dump as a pair
   nsresult rv;
   nsCOMPtr<nsIUUIDGenerator> uuidgen =
@@ -1698,8 +1716,10 @@ CreatePairedMinidumps(ProcessHandle childPid,
   parentMinidump.swap(*parentDump);
 
   return true;
+#endif  // XP_MACOSX
 }
 
+#if !defined(XP_MACOSX)
 bool
 UnsetRemoteExceptionHandler()
 {
@@ -1707,6 +1727,7 @@ UnsetRemoteExceptionHandler()
   gExceptionHandler = NULL;
   return true;
 }
+#endif  // XP_MACOSX
 
 #endif  // MOZ_IPC
 
diff --git a/toolkit/xre/nsEmbedFunctions.cpp b/toolkit/xre/nsEmbedFunctions.cpp
index 05e0cf54003b..bc40599f6cf9 100644
--- a/toolkit/xre/nsEmbedFunctions.cpp
+++ b/toolkit/xre/nsEmbedFunctions.cpp
@@ -260,6 +260,7 @@ XRE_TakeMinidumpForChild(PRUint32 aChildPid, nsILocalFile** aDump)
   return CrashReporter::TakeMinidumpForChild(aChildPid, aDump);
 }
 
+#if !defined(XP_MACOSX)
 PRBool
 XRE_SetRemoteExceptionHandler(const char* aPipe/*= 0*/)
 {
@@ -271,6 +272,7 @@ XRE_SetRemoteExceptionHandler(const char* aPipe/*= 0*/)
 #  error "OOP crash reporter unsupported on this platform"
 #endif
 }
+#endif // !XP_MACOSX
 #endif // if defined(MOZ_CRASHREPORTER)
 
 nsresult