diff --git a/src/include/settings.hpp b/src/include/settings.hpp
index a1a35c6..b9bdd88 100644
--- a/src/include/settings.hpp
+++ b/src/include/settings.hpp
@@ -1,11 +1,14 @@
 #pragma once
 
-#include <duckdb/main/client_context.hpp>
 #include <duckdb/common/exception.hpp>
+#include <duckdb/main/client_context.hpp>
 
 #define UI_LOCAL_PORT_SETTING_NAME "ui_local_port"
+#define UI_LOCAL_PORT_SETTING_DEFAULT 4213
 #define UI_REMOTE_URL_SETTING_NAME "ui_remote_url"
+#define UI_REMOTE_URL_SETTING_DEFAULT "https://ui.duckdb.org"
 #define UI_POLLING_INTERVAL_SETTING_NAME "ui_polling_interval"
+#define UI_POLLING_INTERVAL_SETTING_DEFAULT 284
 
 namespace duckdb {
 
diff --git a/src/settings.cpp b/src/settings.cpp
index ad5c782..e08aa59 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1,8 +1,13 @@
 #include "settings.hpp"
 
+#include <duckdb.hpp>
+
 namespace duckdb {
 
 std::string GetRemoteUrl(const ClientContext &context) {
+  if (!context.db->config.options.allow_unsigned_extensions) {
+    return UI_REMOTE_URL_SETTING_DEFAULT;
+  }
   return internal::GetSetting<std::string>(context, UI_REMOTE_URL_SETTING_NAME);
 }
 
diff --git a/src/ui_extension.cpp b/src/ui_extension.cpp
index 7e9736c..e8ae1cc 100644
--- a/src/ui_extension.cpp
+++ b/src/ui_extension.cpp
@@ -76,15 +76,16 @@ static void LoadInternal(DatabaseInstance &instance) {
 
   auto &config = DBConfig::GetConfig(instance);
   {
-    auto default_port = GetEnvOrDefaultInt(UI_LOCAL_PORT_SETTING_NAME, 4213);
+    auto default_port = GetEnvOrDefaultInt(UI_LOCAL_PORT_SETTING_NAME,
+                                           UI_LOCAL_PORT_SETTING_DEFAULT);
     config.AddExtensionOption(
         UI_LOCAL_PORT_SETTING_NAME, "Local port on which the UI server listens",
         LogicalType::USMALLINT, Value::USMALLINT(default_port));
   }
 
   {
-    auto def =
-        GetEnvOrDefault(UI_REMOTE_URL_SETTING_NAME, "https://ui.duckdb.org");
+    auto def = GetEnvOrDefault(UI_REMOTE_URL_SETTING_NAME,
+                               UI_REMOTE_URL_SETTING_DEFAULT);
     config.AddExtensionOption(
         UI_REMOTE_URL_SETTING_NAME,
         "Remote URL to which the UI server forwards GET requests",
@@ -92,7 +93,8 @@ static void LoadInternal(DatabaseInstance &instance) {
   }
 
   {
-    auto def = GetEnvOrDefaultInt(UI_POLLING_INTERVAL_SETTING_NAME, 284);
+    auto def = GetEnvOrDefaultInt(UI_POLLING_INTERVAL_SETTING_NAME,
+                                  UI_POLLING_INTERVAL_SETTING_DEFAULT);
     config.AddExtensionOption(
         UI_POLLING_INTERVAL_SETTING_NAME,
         "Period of time between UI polling requests (in ms)",