2 files changed, 2 insertions, 2 deletions
diff --git a/js/xpconnect/src/XPCConvert.cpp b/js/xpconnect/src/XPCConvert.cpp
index 87876f36fb..74a7331e75 100644
--- a/js/xpconnect/src/XPCConvert.cpp
+++ b/js/xpconnect/src/XPCConvert.cpp
@@ -495,7 +495,7 @@ XPCConvert::JSData2Native(void* d, HandleValue s,
             (**((nsAString**)d)).SetIsVoid(true);
             return true;
         }
-        MOZ_FALLTHROUGH;
+        [[fallthrough]];
     }
     case nsXPTType::T_DOMSTRING:
     {
diff --git a/js/xpconnect/src/XPCShellImpl.cpp b/js/xpconnect/src/XPCShellImpl.cpp
index ba56a4a0ee..7f748c8f53 100644
--- a/js/xpconnect/src/XPCShellImpl.cpp
+++ b/js/xpconnect/src/XPCShellImpl.cpp
@@ -935,7 +935,7 @@ ProcessArgsForCompartment(JSContext* cx, char** argv, int argc)
             break;
         case 'S':
             ContextOptionsRef(cx).toggleWerror();
-            MOZ_FALLTHROUGH; // because -S implies -s
+            [[fallthrough]]; // because -S implies -s
         case 's':
             ContextOptionsRef(cx).toggleExtraWarnings();
             break;