diff --git a/eng/testing/BrowserVersions.props b/eng/testing/BrowserVersions.props
index afddf6eab52b01..dd5f54e162bf27 100644
--- a/eng/testing/BrowserVersions.props
+++ b/eng/testing/BrowserVersions.props
@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <linux_ChromeVersion>145.0.7632.109</linux_ChromeVersion>
+    <linux_ChromeVersion>145.0.7632.116</linux_ChromeVersion>
     <linux_ChromeRevision>1568190</linux_ChromeRevision>
     <linux_ChromeBaseSnapshotUrl>https://storage.googleapis.com/chromium-browser-snapshots/Linux_x64/1568190</linux_ChromeBaseSnapshotUrl>
     <linux_V8Version>14.5.201</linux_V8Version>
@@ -8,10 +8,10 @@
     <macos_ChromeRevision>1536371</macos_ChromeRevision>
     <macos_ChromeBaseSnapshotUrl>https://storage.googleapis.com/chromium-browser-snapshots/Mac_Arm/1536376</macos_ChromeBaseSnapshotUrl>
     <macos_V8Version>14.3.127</macos_V8Version>
-    <win_ChromeVersion>145.0.7632.77</win_ChromeVersion>
-    <win_ChromeRevision>1568190</win_ChromeRevision>
-    <win_ChromeBaseSnapshotUrl>https://storage.googleapis.com/chromium-browser-snapshots/Win_x64/1568195</win_ChromeBaseSnapshotUrl>
-    <win_V8Version>14.5.201</win_V8Version>
+    <win_ChromeVersion>146.0.7680.31</win_ChromeVersion>
+    <win_ChromeRevision>1582197</win_ChromeRevision>
+    <win_ChromeBaseSnapshotUrl>https://storage.googleapis.com/chromium-browser-snapshots/Win_x64/1582218</win_ChromeBaseSnapshotUrl>
+    <win_V8Version>14.6.202</win_V8Version>
     <linux_FirefoxRevision>125.0.1</linux_FirefoxRevision>
     <linux_GeckoDriverRevision>0.34.0</linux_GeckoDriverRevision>
     <win_FirefoxRevision>125.0.1</win_FirefoxRevision>
diff --git a/src/mono/wasm/Wasm.Build.Tests/Templates/WasmTemplateTestsBase.cs b/src/mono/wasm/Wasm.Build.Tests/Templates/WasmTemplateTestsBase.cs
index 820e4464de9eab..ccfd5c57babee1 100644
--- a/src/mono/wasm/Wasm.Build.Tests/Templates/WasmTemplateTestsBase.cs
+++ b/src/mono/wasm/Wasm.Build.Tests/Templates/WasmTemplateTestsBase.cs
@@ -419,6 +419,19 @@ protected async Task<RunResult> BrowserRun(ToolCommand cmd, string runArgs, RunO
         _testOutput.WriteLine("Waiting for page to load");
         await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded, new() { Timeout = 1 * 60 * 1000 });
 
+        if (runOptions is BlazorRunOptions)
+        {
+            // DOMContentLoaded fires as soon as the initial HTML is parsed,
+            // but Blazor WebAssembly still needs to download the runtime,
+            // assemblies, and render the component tree. Wait for actual
+            // Blazor content to appear before interacting with the page.
+            // The ".page" class comes from MainLayout.razor and is only
+            // present after Blazor has rendered (client-side apps) or is
+            // included in the initial server-rendered HTML (Blazor Web apps).
+            _testOutput.WriteLine("Waiting for Blazor to finish rendering");
+            await page.Locator(".page").WaitForAsync(new() { Timeout = 1 * 60 * 1000 });
+        }
+
         if (runOptions.ExecuteAfterLoaded is not null)
         {
             await runOptions.ExecuteAfterLoaded(runOptions, page);