diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index f72d9123..0d54f813 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -2942,20 +2942,25 @@ getJasmineRequireObj().clearStack = function(j$) {
       global.process.versions &&
       typeof global.process.versions.node === 'string';
 
-    const SAFARI =
+    // Windows builds of WebKit have a fairly generic user agent string when no application name is provided:
+    // e.g. "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/605.1.15 (KHTML, like Gecko)"
+    const SAFARI_OR_WIN_WEBKIT =
       global.navigator &&
-      /^((?!chrome|android).)*safari/i.test(global.navigator.userAgent);
+      /(^((?!chrome|android).)*safari)|(Win64; x64\) AppleWebKit\/[0-9.]+ \(KHTML, like Gecko\)$)/i.test(
+        global.navigator.userAgent
+      );
 
     if (NODE_JS) {
       // Unlike browsers, Node doesn't require us to do a periodic setTimeout
       // so we avoid the overhead.
       return nodeQueueMicrotaskImpl(global);
     } else if (
-      SAFARI ||
+      SAFARI_OR_WIN_WEBKIT ||
       j$.util.isUndefined(global.MessageChannel) /* tests */
     ) {
-      // queueMicrotask is dramatically faster than MessageChannel in Safari,
-      // at least through version 16.
+      // queueMicrotask is dramatically faster than MessageChannel in Safari
+      // and other WebKit-based browsers, such as the one distributed by Playwright
+      // to test Safari-like behavior on Windows.
       // Some of our own integration tests provide a mock queueMicrotask in all
       // environments because it's simpler to mock than MessageChannel.
       return browserQueueMicrotaskImpl(global);
diff --git a/spec/core/ClearStackSpec.js b/spec/core/ClearStackSpec.js
index 626969f5..b60aee7e 100644
--- a/spec/core/ClearStackSpec.js
+++ b/spec/core/ClearStackSpec.js
@@ -22,6 +22,19 @@ describe('ClearStack', function() {
     });
   });
 
+  describe("in WebKit (Playwright's build for Windows)", function() {
+    usesQueueMicrotaskWithSetTimeout(function() {
+      return {
+        navigator: {
+          userAgent:
+            'Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/605.1.15 (KHTML, like Gecko)'
+        },
+        // queueMicrotask should be used even though MessageChannel is present
+        MessageChannel: fakeMessageChannel
+      };
+    });
+  });
+
   describe('in browsers other than Safari', function() {
     usesMessageChannel(function() {
       return {
diff --git a/src/core/ClearStack.js b/src/core/ClearStack.js
index 3be593c4..c8b2ed21 100644
--- a/src/core/ClearStack.js
+++ b/src/core/ClearStack.js
@@ -68,20 +68,25 @@ getJasmineRequireObj().clearStack = function(j$) {
       global.process.versions &&
       typeof global.process.versions.node === 'string';
 
-    const SAFARI =
+    // Windows builds of WebKit have a fairly generic user agent string when no application name is provided:
+    // e.g. "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/605.1.15 (KHTML, like Gecko)"
+    const SAFARI_OR_WIN_WEBKIT =
       global.navigator &&
-      /^((?!chrome|android).)*safari/i.test(global.navigator.userAgent);
+      /(^((?!chrome|android).)*safari)|(Win64; x64\) AppleWebKit\/[0-9.]+ \(KHTML, like Gecko\)$)/i.test(
+        global.navigator.userAgent
+      );
 
     if (NODE_JS) {
       // Unlike browsers, Node doesn't require us to do a periodic setTimeout
       // so we avoid the overhead.
       return nodeQueueMicrotaskImpl(global);
     } else if (
-      SAFARI ||
+      SAFARI_OR_WIN_WEBKIT ||
       j$.util.isUndefined(global.MessageChannel) /* tests */
     ) {
-      // queueMicrotask is dramatically faster than MessageChannel in Safari,
-      // at least through version 16.
+      // queueMicrotask is dramatically faster than MessageChannel in Safari
+      // and other WebKit-based browsers, such as the one distributed by Playwright
+      // to test Safari-like behavior on Windows.
       // Some of our own integration tests provide a mock queueMicrotask in all
       // environments because it's simpler to mock than MessageChannel.
       return browserQueueMicrotaskImpl(global);