diff --git a/seleniumbase/fixtures/base_case.py b/seleniumbase/fixtures/base_case.py
index 833429d0..96695ae0 100755
--- a/seleniumbase/fixtures/base_case.py
+++ b/seleniumbase/fixtures/base_case.py
@@ -3939,12 +3939,18 @@ class BaseCase(unittest.TestCase):
     def __escape_quotes_if_needed(self, string):
         return js_utils.escape_quotes_if_needed(string)
 
+    def __is_in_frame(self):
+        return js_utils.is_in_frame(self.driver)
+
     def bring_active_window_to_front(self):
         """Brings the active browser window to the front.
         This is useful when multiple drivers are being used."""
         self.__check_scope()
         try:
-            self.switch_to_window(self.driver.current_window_handle)
+            if not self.__is_in_frame():
+                # Only bring the window to the front if not in a frame
+                # because the driver resets itself to default content.
+                self.switch_to_window(self.driver.current_window_handle)
         except Exception:
             pass
 
diff --git a/seleniumbase/fixtures/js_utils.py b/seleniumbase/fixtures/js_utils.py
index d02cb5bb..c018bf32 100755
--- a/seleniumbase/fixtures/js_utils.py
+++ b/seleniumbase/fixtures/js_utils.py
@@ -212,6 +212,24 @@ def escape_quotes_if_needed(string):
     return string
 
 
+def is_in_frame(driver):
+    """
+    Returns True if the driver has switched to a frame.
+    Returns False if the driver was on default content.
+    """
+    return driver.execute_script(
+        """
+        var frame = window.frameElement;
+        if (frame) {
+            return true;
+        }
+        else {
+            return false;
+        }
+        """
+    )
+
+
 def safe_execute_script(driver, script):
     """When executing a script that contains a jQuery command,
     it's important that the jQuery library has been loaded first.