diff --git a/seleniumbase/__version__.py b/seleniumbase/__version__.py
index b219126d2d0..c92f01d22ab 100755
--- a/seleniumbase/__version__.py
+++ b/seleniumbase/__version__.py
@@ -1,2 +1,2 @@
 # seleniumbase package
-__version__ = "4.21.3"
+__version__ = "4.21.4"
diff --git a/seleniumbase/core/browser_launcher.py b/seleniumbase/core/browser_launcher.py
index d354dff5d72..367b77fd69a 100644
--- a/seleniumbase/core/browser_launcher.py
+++ b/seleniumbase/core/browser_launcher.py
@@ -1094,12 +1094,13 @@ def _set_chrome_options(
     if user_data_dir:
         chrome_options.add_argument(
             "--disable-features=OptimizationHintsFetching,Translate,"
-            "OptimizationTargetPrediction,PrivacySandboxSettings4"
+            "OptimizationTargetPrediction,PrivacySandboxSettings4,"
+            "DownloadBubble,DownloadBubbleV2"
         )
     else:
         chrome_options.add_argument(
             "--disable-features=OptimizationHintsFetching,Translate,"
-            "OptimizationTargetPrediction"
+            "OptimizationTargetPrediction,DownloadBubble,DownloadBubbleV2"
         )
     if (
         is_using_uc(undetectable, browser_name)