diff --git a/src-tauri/src/app/menu.rs b/src-tauri/src/app/menu.rs
index bc2391621..da1d212c3 100644
--- a/src-tauri/src/app/menu.rs
+++ b/src-tauri/src/app/menu.rs
@@ -71,12 +71,20 @@ pub fn init(context: &Context<EmbeddedAssets>) -> Menu {
             always_on_top_menu.into(),
             #[cfg(target_os = "macos")]
             titlebar_menu.into(),
+            // fix: Checking if the site connection is secure
+            // @link: https://github.com/lencx/ChatGPT/issues/17
+            CustomMenuItem::new("user_agent".to_string(), "User Agent")
+                .accelerator("CmdOrCtrl+U")
+                .into(),
             CustomMenuItem::new("switch_origin".to_string(), "Switch Origin")
                 .accelerator("CmdOrCtrl+O")
                 .into(),
             CustomMenuItem::new("inject_script".to_string(), "Inject Script")
                 .accelerator("CmdOrCtrl+J")
                 .into(),
+            CustomMenuItem::new("clear_conf".to_string(), "Clear Config")
+                .accelerator("CmdOrCtrl+D")
+                .into(),
             MenuItem::Separator.into(),
             CustomMenuItem::new("awesome".to_string(), "Awesome ChatGPT")
                 .accelerator("CmdOrCtrl+Z")
@@ -156,11 +164,10 @@ pub fn menu_handler(event: WindowMenuEvent<tauri::Wry>) {
         "restart" => tauri::api::process::restart(&app.env()),
         // Preferences
         "inject_script" => open(&app, script_path),
+        "clear_conf" => utils::clear_conf(&app),
+        "switch_origin" => window::origin_window(&app),
+        "user_agent" => window::ua_window(&app),
         "awesome" => open(&app, conf::AWESOME_URL.to_string()),
-        "switch_origin" => {
-            window::origin_window(&app);
-            // app.get_window("origin").unwrap().show();
-        }
         "titlebar" => {
             let chat_conf = conf::ChatConfJson::get_chat_conf();
             ChatConfJson::amend(&serde_json::json!({ "titlebar": !chat_conf.titlebar })).unwrap();
diff --git a/src-tauri/src/app/setup.rs b/src-tauri/src/app/setup.rs
index 3418a8fa8..6812ce9f6 100644
--- a/src-tauri/src/app/setup.rs
+++ b/src-tauri/src/app/setup.rs
@@ -1,8 +1,4 @@
-use crate::{
-    app::window,
-    conf::{ChatConfJson, USER_AGENT},
-    utils,
-};
+use crate::{app::window, conf::ChatConfJson, utils};
 use tauri::{utils::config::WindowUrl, window::WindowBuilder, App, Manager};
 
 pub fn init(app: &mut App) -> std::result::Result<(), Box<dyn std::error::Error>> {
@@ -25,7 +21,7 @@ pub fn init(app: &mut App) -> std::result::Result<(), Box<dyn std::error::Error>
         .initialization_script(include_str!("../assets/jspdf.js"))
         .initialization_script(include_str!("../assets/core.js"))
         .initialization_script(include_str!("../assets/export.js"))
-        .user_agent(USER_AGENT)
+        .user_agent(&chat_conf.ua_pc)
         .build()?;
 
     #[cfg(not(target_os = "macos"))]
@@ -41,7 +37,7 @@ pub fn init(app: &mut App) -> std::result::Result<(), Box<dyn std::error::Error>
         .initialization_script(include_str!("../assets/jspdf.js"))
         .initialization_script(include_str!("../assets/core.js"))
         .initialization_script(include_str!("../assets/export.js"))
-        .user_agent(USER_AGENT)
+        .user_agent(&chat_conf.ua_pc)
         .build()?;
 
     Ok(())
diff --git a/src-tauri/src/app/window.rs b/src-tauri/src/app/window.rs
index 2fc6af383..b0c5f08fb 100644
--- a/src-tauri/src/app/window.rs
+++ b/src-tauri/src/app/window.rs
@@ -17,7 +17,7 @@ pub fn mini_window(handle: &tauri::AppHandle) {
         .initialization_script(include_str!("../assets/jspdf.js"))
         .initialization_script(include_str!("../assets/core.js"))
         .initialization_script(include_str!("../assets/export.js"))
-        .user_agent(conf::PHONE_USER_AGENT)
+        .user_agent(&chat_conf.ua_phone)
         .build()
         .unwrap()
         .hide()
@@ -26,8 +26,6 @@ pub fn mini_window(handle: &tauri::AppHandle) {
 
 pub fn origin_window(handle: &tauri::AppHandle) {
     let chat_conf = conf::ChatConfJson::get_chat_conf();
-    // tauri://localhost/origin
-    // let url = chat_conf.origin;
     WindowBuilder::new(handle, "origin", WindowUrl::App(chat_conf.origin.into()))
         .resizable(false)
         .fullscreen(false)
@@ -39,3 +37,17 @@ pub fn origin_window(handle: &tauri::AppHandle) {
         .build()
         .unwrap();
 }
+
+pub fn ua_window(handle: &tauri::AppHandle) {
+    let chat_conf = conf::ChatConfJson::get_chat_conf();
+    WindowBuilder::new(handle, "ua", WindowUrl::App(chat_conf.origin.into()))
+        .resizable(false)
+        .fullscreen(false)
+        .inner_size(540.0, 480.0)
+        .always_on_top(true)
+        .decorations(false)
+        .initialization_script(include_str!("../assets/core.js"))
+        .initialization_script(include_str!("../assets/ua.js"))
+        .build()
+        .unwrap();
+}
diff --git a/src-tauri/src/assets/origin.js b/src-tauri/src/assets/origin.js
index 422008667..2933ffcfe 100644
--- a/src-tauri/src/assets/origin.js
+++ b/src-tauri/src/assets/origin.js
@@ -54,7 +54,7 @@ function init() {
   const cancelBtn = document.getElementById('cancel');
   const confirmBtn = document.getElementById('confirm');
   cancelBtn.addEventListener('click', () => {
-    window.invoke('form_cancel', { label: 'origin', title: 'Switch Origin', msg: 'Sure you want to give up the switch?' });
+    window.invoke('form_cancel', { label: 'origin', title: 'Switch Origin', msg: 'Are you sure you want to cancel editing?' });
   })
   confirmBtn.addEventListener('click', () => {
     if (/^https?:\\/\\//.test(input.value)) {
diff --git a/src-tauri/src/assets/ua.js b/src-tauri/src/assets/ua.js
new file mode 100644
index 000000000..097c5e7fe
--- /dev/null
+++ b/src-tauri/src/assets/ua.js
@@ -0,0 +1,89 @@
+function init() {
+  document.body.innerHTML = `<style>
+  body {
+    height: 100vh;
+    padding: 0;
+    margin: 0;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    font-family: Söhne,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif,Helvetica Neue,Arial,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;
+  }
+  h3 {
+    margin-bottom: 20px;
+  }
+  textarea {
+    all: unset;
+    width: 300px;
+    height: 60px;
+    margin-bottom: 10px;
+    padding: 10px;
+    border: solid 2px #d8d8d8;
+    background-color: #fff;
+    border-radius: 5px !important;
+    color: #4a4a4a;
+  }
+  button {
+    all: unset;
+    height: 30px;
+    font-size: 16px;
+    padding: 0 10px;
+    line-height: 30px;
+    margin: 0 5px;
+    color: #fff;
+    border-radius: 5px;
+    cursor: pointer;
+  }
+  #cancel {
+    background-color: #999;
+  }
+  #confirm {
+    background-color: #10a37f;
+  }
+  .item {
+    display: flex;
+    align-items: center;
+  }
+  label {
+    width: 120px;
+    margin-right: 10px;
+  }
+  </style>
+  <h3>User Agent</h3>
+  <div class="item">
+    <label>Main Window (PC)</label>
+    <textarea id="ua_pc" type="text" autocapitalize="off" autocomplete="off" spellcheck="false" autofocus placeholder="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) ..."></textarea>
+  </div>
+  <div class="item">
+    <label>Tray Window (Phone)</label>
+    <textarea id="ua_phone" type="text" autocapitalize="off" autocomplete="off" spellcheck="false" autofocus placeholder="Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS ..."></textarea>
+  </div>
+  <div class="btns">
+    <button id="cancel">Cancel</button>
+    <button id="confirm">Confirm</button>
+  </div>`;
+
+  const srcipt = document.createElement('script');
+  srcipt.innerHTML = `const ua_pc = document.getElementById('ua_pc');
+  const ua_phone = document.getElementById('ua_phone');
+  const cancelBtn = document.getElementById('cancel');
+  const confirmBtn = document.getElementById('confirm');
+  cancelBtn.addEventListener('click', () => {
+    window.invoke('form_cancel', { label: 'ua', title: 'User Agent', msg: 'Are you sure you want to cancel editing?' });
+  })
+  confirmBtn.addEventListener('click', () => {
+    window.invoke('form_confirm', { data: { ua_pc: ua_pc.value, ua_phone: ua_phone.value } });
+  })`;
+  document.head.appendChild(srcipt);
+}
+
+// run init
+if (
+  document.readyState === "complete" ||
+  document.readyState === "interactive"
+) {
+  init();
+} else {
+  document.addEventListener("DOMContentLoaded", init);
+}
\ No newline at end of file
diff --git a/src-tauri/src/conf.rs b/src-tauri/src/conf.rs
index 12e5179a1..d2c73e416 100644
--- a/src-tauri/src/conf.rs
+++ b/src-tauri/src/conf.rs
@@ -7,8 +7,6 @@ use tauri::Theme;
 #[cfg(target_os = "macos")]
 use tauri::TitleBarStyle;
 
-pub const USER_AGENT: &str = "5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36";
-pub const PHONE_USER_AGENT: &str = "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1";
 pub const ISSUES_URL: &str = "https://github.com/lencx/ChatGPT/issues";
 pub const AWESOME_URL: &str = "https://github.com/lencx/ChatGPT/blob/main/AWESOME.md";
 pub const DEFAULT_CHAT_CONF: &str = r#"{
@@ -16,7 +14,18 @@ pub const DEFAULT_CHAT_CONF: &str = r#"{
     "theme": "Light",
     "titlebar": true,
     "default_origin": "https://chat.openai.com",
-    "origin": "https://chat.openai.com"
+    "origin": "https://chat.openai.com",
+    "ua_pc": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1",
+    "ua_phone": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1"
+}"#;
+pub const DEFAULT_CHAT_CONF_MAC: &str = r#"{
+    "always_on_top": false,
+    "theme": "Light",
+    "titlebar": false,
+    "default_origin": "https://chat.openai.com",
+    "origin": "https://chat.openai.com",
+    "ua_pc": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1",
+    "ua_phone": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1"
 }"#;
 
 pub struct ChatState {
@@ -33,11 +42,13 @@ impl ChatState {
 
 #[derive(serde::Serialize, serde::Deserialize, Debug, Clone)]
 pub struct ChatConfJson {
+    pub titlebar: bool,
     pub always_on_top: bool,
     pub theme: String,
-    pub titlebar: bool,
     pub default_origin: String,
     pub origin: String,
+    pub ua_pc: String,
+    pub ua_phone: String,
 }
 
 impl ChatConfJson {
@@ -49,17 +60,7 @@ impl ChatConfJson {
             create_file(&conf_file).unwrap();
 
             #[cfg(target_os = "macos")]
-            fs::write(
-                &conf_file,
-                r#"{
-                "always_on_top": false,
-                "theme": "Light",
-                "titlebar": false,
-                "default_origin": "https://chat.openai.com",
-                "origin": "https://chat.openai.com"
-            }"#,
-            )
-            .unwrap();
+            fs::write(&conf_file, DEFAULT_CHAT_CONF_MAC).unwrap();
 
             #[cfg(not(target_os = "macos"))]
             fs::write(&conf_file, DEFAULT_CHAT_CONF).unwrap();
@@ -72,7 +73,8 @@ impl ChatConfJson {
     }
 
     pub fn get_chat_conf() -> Self {
-        let config_file = fs::read_to_string(ChatConfJson::conf_path()).unwrap();
+        let config_file = fs::read_to_string(ChatConfJson::conf_path())
+            .unwrap_or_else(|_| DEFAULT_CHAT_CONF.to_string());
         let config: Value =
             serde_json::from_str(&config_file).expect("failed to parse chat.conf.json");
         serde_json::from_value(config).unwrap_or_else(|_| ChatConfJson::chat_conf_default())
diff --git a/src-tauri/src/utils.rs b/src-tauri/src/utils.rs
index 58f37fe9a..841ab6265 100644
--- a/src-tauri/src/utils.rs
+++ b/src-tauri/src/utils.rs
@@ -4,6 +4,7 @@ use std::{
     path::{Path, PathBuf},
     process::Command,
 };
+use tauri::Manager;
 // use tauri::utils::config::Config;
 
 pub fn chat_root() -> PathBuf {
@@ -61,3 +62,20 @@ pub fn open_file(path: PathBuf) {
     #[cfg(target_os = "linux")]
     Command::new("xdg-open").arg(path).spawn().unwrap();
 }
+
+pub fn clear_conf(app: &tauri::AppHandle) {
+    let root = chat_root();
+    let app2 = app.clone();
+    let msg = format!("Path: {}\nAre you sure to clear all ChatGPT configurations? Please backup in advance if necessary!", root.to_string_lossy());
+    tauri::api::dialog::ask(
+        app.get_window("core").as_ref(),
+        "Clear Config",
+        msg,
+        move |is_ok| {
+            if is_ok {
+                fs::remove_dir_all(root).unwrap();
+                tauri::api::process::restart(&app2.env());
+            }
+        },
+    );
+}