diff --git a/widget/cocoa/nsCocoaWindow.mm b/widget/cocoa/nsCocoaWindow.mm
index c15874715c..47c65dc620 100644
--- a/widget/cocoa/nsCocoaWindow.mm
+++ b/widget/cocoa/nsCocoaWindow.mm
@@ -2905,7 +2905,7 @@ static NSMutableSet *gSwizzledFrameViewClasses = nil;
   [super initWithContentRect:aContentRect styleMask:aStyle backing:aBufferingType defer:aFlag];
   // MacOS 13 Ventura, doesn't seem to create the contentView... so create it ourselves
   if(![super contentView]) {
-      [super setContentView:[[NSView alloc] initWithFrame:aContentRect]];
+      [super setContentView:[[[NSView alloc] initWithFrame:aContentRect] autorelease]];
   }
   mState = nil;
   mActiveTitlebarColor = nil;
@@ -3213,64 +3213,6 @@ static const NSString* kStateCollectionBehavior = @"collectionBehavior";
   }
 }
 
-// Override methods that translate between content rect and frame rect.
-- (NSRect)contentRectForFrameRect:(NSRect)aRect
-{
-  if ([self drawsContentsIntoWindowFrame]) {
-    return aRect;
-  }
-  return [super contentRectForFrameRect:aRect];
-}
-
-- (NSRect)contentRectForFrameRect:(NSRect)aRect styleMask:(NSUInteger)aMask
-{
-  if ([self drawsContentsIntoWindowFrame]) {
-    return aRect;
-  }
-  if ([super respondsToSelector:@selector(contentRectForFrameRect:styleMask:)]) {
-    return [super contentRectForFrameRect:aRect styleMask:aMask];
-  } else {
-    return [NSWindow contentRectForFrameRect:aRect styleMask:aMask];
-  }
-}
-
-- (NSRect)frameRectForContentRect:(NSRect)aRect
-{
-  if ([self drawsContentsIntoWindowFrame]) {
-    return aRect;
-  }
-  return [super frameRectForContentRect:aRect];
-}
-
-- (NSRect)frameRectForContentRect:(NSRect)aRect styleMask:(NSUInteger)aMask
-{
-  if ([self drawsContentsIntoWindowFrame]) {
-    return aRect;
-  }
-  if ([super respondsToSelector:@selector(frameRectForContentRect:styleMask:)]) {
-    return [super frameRectForContentRect:aRect styleMask:aMask];
-  } else {
-    return [NSWindow frameRectForContentRect:aRect styleMask:aMask];
-  }
-}
-
-- (void)setContentView:(NSView*)aView
-{
-  [super setContentView:aView];
-
-  // Now move the contentView to the bottommost layer so that it's guaranteed
-  // to be under the window buttons.
-  NSView* frameView = [aView superview];
-  [aView removeFromSuperview];
-  if ([frameView respondsToSelector:@selector(_addKnownSubview:positioned:relativeTo:)]) {
-    // 10.10 prints a warning when we call addSubview on the frame view, so we
-    // silence the warning by calling a private method instead.
-    [frameView _addKnownSubview:aView positioned:NSWindowBelow relativeTo:nil];
-  } else {
-    [frameView addSubview:aView positioned:NSWindowBelow relativeTo:nil];
-  }
-}
-
 - (NSArray*)titlebarControls
 {
   // Return all subviews of the frameView which are not the content view.
@@ -3504,6 +3446,64 @@ static const NSString* kStateCollectionBehavior = @"collectionBehavior";
   return NSMaxY(frameRect) - NSMaxY(originalContentRect);
 }
 
+// Override methods that translate between content rect and frame rect.
+- (NSRect)contentRectForFrameRect:(NSRect)aRect
+{
+  if ([self drawsContentsIntoWindowFrame]) {
+    return aRect;
+  }
+  return [super contentRectForFrameRect:aRect];
+}
+
+- (NSRect)contentRectForFrameRect:(NSRect)aRect styleMask:(NSUInteger)aMask
+{
+  if ([self drawsContentsIntoWindowFrame]) {
+    return aRect;
+  }
+  if ([super respondsToSelector:@selector(contentRectForFrameRect:styleMask:)]) {
+    return [super contentRectForFrameRect:aRect styleMask:aMask];
+  } else {
+    return [NSWindow contentRectForFrameRect:aRect styleMask:aMask];
+  }
+}
+
+- (NSRect)frameRectForContentRect:(NSRect)aRect
+{
+  if ([self drawsContentsIntoWindowFrame]) {
+    return aRect;
+  }
+  return [super frameRectForContentRect:aRect];
+}
+
+- (NSRect)frameRectForContentRect:(NSRect)aRect styleMask:(NSUInteger)aMask
+{
+  if ([self drawsContentsIntoWindowFrame]) {
+    return aRect;
+  }
+  if ([super respondsToSelector:@selector(frameRectForContentRect:styleMask:)]) {
+    return [super frameRectForContentRect:aRect styleMask:aMask];
+  } else {
+    return [NSWindow frameRectForContentRect:aRect styleMask:aMask];
+  }
+}
+
+- (void)setContentView:(NSView*)aView
+{
+  [super setContentView:aView];
+
+  // Now move the contentView to the bottommost layer so that it's guaranteed
+  // to be under the window buttons.
+  NSView* frameView = [aView superview];
+  [aView removeFromSuperview];
+  if ([frameView respondsToSelector:@selector(_addKnownSubview:positioned:relativeTo:)]) {
+    // 10.10 prints a warning when we call addSubview on the frame view, so we
+    // silence the warning by calling a private method instead.
+    [frameView _addKnownSubview:aView positioned:NSWindowBelow relativeTo:nil];
+  } else {
+    [frameView addSubview:aView positioned:NSWindowBelow relativeTo:nil];
+  }
+}
+
 // Stores the complete height of titlebar + toolbar.
 - (void)setUnifiedToolbarHeight:(CGFloat)aHeight
 {