diff --git a/browser_patches/webkit/BUILD_NUMBER b/browser_patches/webkit/BUILD_NUMBER
index d98057a110..7784c898e3 100644
--- a/browser_patches/webkit/BUILD_NUMBER
+++ b/browser_patches/webkit/BUILD_NUMBER
@@ -1 +1 @@
-1152
+1153
diff --git a/browser_patches/webkit/patches/bootstrap.diff b/browser_patches/webkit/patches/bootstrap.diff
index 7b9ecf0e18..d5d757880e 100644
--- a/browser_patches/webkit/patches/bootstrap.diff
+++ b/browser_patches/webkit/patches/bootstrap.diff
@@ -13960,10 +13960,10 @@ index 0000000000000000000000000000000000000000..00fb6b0006c743091a8bbf8edb18b211
 +</Scheme>
 diff --git a/Tools/Playwright/mac/AppDelegate.h b/Tools/Playwright/mac/AppDelegate.h
 new file mode 100644
-index 0000000000000000000000000000000000000000..41b5751cab626971cd12c5066218c6d14c00fba0
+index 0000000000000000000000000000000000000000..42ea067d455862eab9275d1b466e655340b71070
 --- /dev/null
 +++ b/Tools/Playwright/mac/AppDelegate.h
-@@ -0,0 +1,55 @@
+@@ -0,0 +1,56 @@
 +/*
 + * Copyright (C) 2010 Apple Inc. All rights reserved.
 + *
@@ -14001,6 +14001,7 @@ index 0000000000000000000000000000000000000000..41b5751cab626971cd12c5066218c6d1
 +    NSMutableSet *_headlessWindows;
 +    NSMutableSet *_browserContexts;
 +    bool _headless;
++    bool _no_startup_window;
 +    NSMutableSet *_dialogs;
 +    NSString* _initialURL;
 +    NSString* _userDataDir;
@@ -14021,10 +14022,10 @@ index 0000000000000000000000000000000000000000..41b5751cab626971cd12c5066218c6d1
 +@end
 diff --git a/Tools/Playwright/mac/AppDelegate.m b/Tools/Playwright/mac/AppDelegate.m
 new file mode 100644
-index 0000000000000000000000000000000000000000..7fbd8c5426eb43b96a7c8e793a7f85810819053e
+index 0000000000000000000000000000000000000000..637029587153f5157a3a046877840dda1a4bdfe1
 --- /dev/null
 +++ b/Tools/Playwright/mac/AppDelegate.m
-@@ -0,0 +1,490 @@
+@@ -0,0 +1,492 @@
 +/*
 + * Copyright (C) 2010-2016 Apple Inc. All rights reserved.
 + *
@@ -14127,6 +14128,7 @@ index 0000000000000000000000000000000000000000..7fbd8c5426eb43b96a7c8e793a7f8581
 +    }
 +
 +    _headless = [arguments containsObject: @"--headless"];
++    _no_startup_window = [arguments containsObject: @"--no-startup-window"];
 +    _browserContexts = [[NSMutableSet alloc] init];
 +
 +    if (_headless) {
@@ -14271,7 +14273,8 @@ index 0000000000000000000000000000000000000000..7fbd8c5426eb43b96a7c8e793a7f8581
 +- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
 +{
 +    if (_headless) {
-+        [self createNewPage:0];
++        if (!_no_startup_window)
++            [self createNewPage:0];
 +        return;
 +    }
 +
@@ -14280,7 +14283,7 @@ index 0000000000000000000000000000000000000000..7fbd8c5426eb43b96a7c8e793a7f8581
 +    [webHistory release];
 +
 +    [self _updateNewWindowKeyEquivalents];
-+    if (!_initialURL)
++    if (!_initialURL && !_no_startup_window)
 +        [self newWindow:self];
 +    _initialURL = nil;
 +}