diff --git a/memory/mozalloc/mozalloc_abort.cpp b/memory/mozalloc/mozalloc_abort.cpp
index e3eb02466231..e691c7bdec97 100644
--- a/memory/mozalloc/mozalloc_abort.cpp
+++ b/memory/mozalloc/mozalloc_abort.cpp
@@ -55,7 +55,7 @@ void fillAbortMessage(char (&msg)[N], uintptr_t retAddress) {
 }
 #endif
 
-#if defined(XP_UNIX) && !defined(MOZ_ASAN)
+#if defined(XP_UNIX) && !defined(MOZ_ASAN) && !defined(MOZ_TSAN)
 // Define abort() here, so that it is used instead of the system abort(). This
 // lets us control the behavior when aborting, in order to get better results
 // on *NIX platforms. See mozalloc_abort for details.
@@ -68,6 +68,9 @@ void fillAbortMessage(char (&msg)[N], uintptr_t retAddress) {
 //
 // That segmentation fault will be interpreted as another bug by ASan and as a
 // result, ASan will just exit(1) instead of aborting.
+//
+// The same applies to ThreadSanitizer when run with "halt_on_error=1" in
+// combination with "abort_on_error=1".
 extern "C" void abort(void) {
 #  ifdef MOZ_WIDGET_ANDROID
   char msg[64] = {};