4 files changed, 9 insertions, 15 deletions
diff --git a/js/src/builtin/Reflect.cpp b/js/src/builtin/Reflect.cpp
index ab7cca174d..a902c90d8b 100644
--- a/js/src/builtin/Reflect.cpp
+++ b/js/src/builtin/Reflect.cpp
@@ -44,7 +44,7 @@ Reflect_defineProperty(JSContext* cx, unsigned argc, Value* vp)
     ObjectOpResult result;
     if (!DefineProperty(cx, obj, key, desc, result))
         return false;
-    args.rval().setBoolean(bool(result));
+    args.rval().setBoolean(result.confirmOk());
     return true;
 }
 
@@ -69,7 +69,7 @@ Reflect_deleteProperty(JSContext* cx, unsigned argc, Value* vp)
     ObjectOpResult result;
     if (!DeleteProperty(cx, target, key, result))
         return false;
-    args.rval().setBoolean(bool(result));
+    args.rval().setBoolean(result.confirmOk());
     return true;
 }
 
@@ -178,7 +178,7 @@ Reflect_preventExtensions(JSContext* cx, unsigned argc, Value* vp)
     ObjectOpResult result;
     if (!PreventExtensions(cx, target, result))
         return false;
-    args.rval().setBoolean(bool(result));
+    args.rval().setBoolean(result.confirmOk());
     return true;
 }
 
@@ -207,7 +207,7 @@ Reflect_set(JSContext* cx, unsigned argc, Value* vp)
     RootedValue value(cx, args.get(2));
     if (!SetProperty(cx, target, key, value, receiver, result))
         return false;
-    args.rval().setBoolean(bool(result));
+    args.rval().setBoolean(result.confirmOk());
     return true;
 }
 
@@ -240,7 +240,7 @@ Reflect_setPrototypeOf(JSContext* cx, unsigned argc, Value* vp)
     ObjectOpResult result;
     if (!SetPrototype(cx, obj, proto, result))
         return false;
-    args.rval().setBoolean(bool(result));
+    args.rval().setBoolean(result.confirmOk());
     return true;
 }
 
diff --git a/js/src/builtin/TestingFunctions.cpp b/js/src/builtin/TestingFunctions.cpp
index c9dcadaddf..f91a53eae2 100644
--- a/js/src/builtin/TestingFunctions.cpp
+++ b/js/src/builtin/TestingFunctions.cpp
@@ -123,11 +123,7 @@ GetBuildConfiguration(JSContext* cx, unsigned argc, Value* vp)
     if (!JS_SetProperty(cx, info, "debug", value))
         return false;
 
-#ifdef RELEASE_OR_BETA
     value = BooleanValue(true);
-#else
-    value = BooleanValue(false);
-#endif
     if (!JS_SetProperty(cx, info, "release_or_beta", value))
         return false;
 
diff --git a/js/src/frontend/Parser.cpp b/js/src/frontend/Parser.cpp
index c51545f1b9..38bd77ead3 100644
--- a/js/src/frontend/Parser.cpp
+++ b/js/src/frontend/Parser.cpp
@@ -10190,7 +10190,9 @@ Parser<ParseHandler>::exprInParens(InHandling inHandling, YieldHandling yieldHan
 bool
 ParserBase::warnOnceAboutExprClosure()
 {
-#ifndef RELEASE_OR_BETA
+    // We extensively use expression closures.
+    // Disabling spew; see Issue #3061
+#if 0
     JSContext* cx = context->maybeJSContext();
     if (!cx)
         return true;
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index 6e155d3ff6..755fb73f1a 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -145,13 +145,9 @@ static const size_t gMaxStackSize = 128 * sizeof(size_t) * 1024;
  */
 static const double MAX_TIMEOUT_SECONDS = 1800.0;
 
-// SharedArrayBuffer and Atomics settings track Firefox.  Choose a custom setting
+// SharedArrayBuffer and Atomics settings track browser. Choose a custom setting
 // with --shared-memory={on,off}.
-#ifndef RELEASE_OR_BETA
 # define SHARED_MEMORY_DEFAULT 1
-#else
-# define SHARED_MEMORY_DEFAULT 0
-#endif
 
 using JobQueue = GCVector<JSObject*, 0, SystemAllocPolicy>;