diff --git a/litellm/proxy/common_utils/html_forms/cli_sso_success.py b/litellm/proxy/common_utils/html_forms/cli_sso_success.py
index 51f0775d90b..345f3ca5b42 100644
--- a/litellm/proxy/common_utils/html_forms/cli_sso_success.py
+++ b/litellm/proxy/common_utils/html_forms/cli_sso_success.py
@@ -135,7 +135,7 @@ def render_cli_sso_success_page() -> str:
                 font-size: 14px;
             }}
 
-            .countdown {{
+            .status {{
                 color: #64748b;
                 font-size: 14px;
                 font-weight: 500;
@@ -183,23 +183,11 @@ def render_cli_sso_success_page() -> str:
                 <p>You can now use LiteLLM CLI commands with your authenticated session.</p>
             </div>
             
-            <div class="countdown" id="countdown">This window will close in 3 seconds...</div>
+            <div class="status">You can now close this window and return to your terminal.</div>
         </div>
-        
+
         <script>
-            let seconds = 3;
-            const countdownElement = document.getElementById('countdown');
-            
-            const countdown = setInterval(function() {{
-                seconds--;
-                if (seconds > 0) {{
-                    countdownElement.textContent = `This window will close in ${{seconds}} second${{seconds === 1 ? '' : 's'}}...`;
-                }} else {{
-                    countdownElement.textContent = 'Closing...';
-                    clearInterval(countdown);
-                    window.close();
-                }}
-            }}, 1000);
+            window.close();
         </script>
     </body>
     </html>
diff --git a/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py b/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py
index c763e9c0e98..2efec3e0b34 100644
--- a/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py
+++ b/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py
@@ -1777,6 +1777,23 @@ class TestHTMLIntegration:
         assert isinstance(html, str)
         assert len(html) > 0
 
+    def test_success_page_instructs_manual_close_without_false_countdown(self):
+        """Browsers refuse window.close() on tabs they did not open via window.open()
+        (the CLI opens the page with webbrowser.open), so a 'closing in 3...' countdown
+        is a promise the browser usually can't keep and the page gets stuck on
+        'Closing...'. The page must instead always show the manual-close instruction
+        and never advertise an auto-close that won't happen.
+        """
+        from litellm.proxy.common_utils.html_forms.cli_sso_success import (
+            render_cli_sso_success_page,
+        )
+
+        html = render_cli_sso_success_page()
+
+        assert "You can now close this window and return to your terminal." in html
+        assert "Closing..." not in html
+        assert "This window will close in" not in html
+
 
 class TestCustomUISSO:
     """Test the custom UI SSO sign-in handler functionality"""