diff --git a/js/mzta-utils.js b/js/mzta-utils.js
index 6733f3c5..e22ac3eb 100644
--- a/js/mzta-utils.js
+++ b/js/mzta-utils.js
@@ -19,6 +19,7 @@
 import { prefs_default, getDynamicSettingValue } from '../options/mzta-options-default.js';
 const sparks_min = '1.2.0'; // Minimum version of ThunderAI-Sparks required for the add-on to work
 export const ChatGPTWeb_models = ['gpt-5','gpt-5-instant','gpt-5-t-mini','gpt-5-thinking'];  // List of models available in ChatGPT Web
+const MICZ_IT_LOCALIZED_LANGS = ['es', 'de', 'fr', 'it'];
 
 export const getMenuContextCompose = () => 'compose_action_menu';
 export const getMenuContextDisplay = () => 'message_display_action_menu';
@@ -38,6 +39,12 @@ export function getLanguageDisplayName(languageCode) {
    return lang_string.charAt(0).toUpperCase() + lang_string.slice(1);
 }
 
+export function getMiczItUrl(path) {
+  const lang = browser.i18n.getUILanguage().split('-')[0];
+  const prefix = MICZ_IT_LOCALIZED_LANGS.includes(lang) ? `${lang}/` : '';
+  return `https://micz.it/${prefix}${path}`;
+}
+
 function fixMsgHeader(msgHeader) {
   if (!msgHeader.bccList) {
     msgHeader.bccList = [];
diff --git a/options/mzta-options.html b/options/mzta-options.html
index 3a02a77d..fb792f86 100644
--- a/options/mzta-options.html
+++ b/options/mzta-options.html
@@ -20,8 +20,8 @@
           <div id="mzta_doc_block">
             <span class="doc_title">__MSG_prefs_doc_title__</span>
             <div class="doc_links">
-              <a href="https://micz.it/thunderbird-addon-thunderai/guides/">__MSG_prefs_doc_setup_guide__</a>
-              <a href="https://micz.it/thunderbird-addon-thunderai/tutorial/">__MSG_prefs_doc_custom_prompt_tutorial__</a>
+              <a id="link_doc_guides" href="#">__MSG_prefs_doc_setup_guide__</a>
+              <a id="link_doc_tutorial" href="#">__MSG_prefs_doc_custom_prompt_tutorial__</a>
             </div>
             <div class="doc_welcome">
               <a href="#" id="btn_welcome">__MSG_prefs_doc_open_welcome__</a>
diff --git a/options/mzta-options.js b/options/mzta-options.js
index ffa9737b..289a5430 100644
--- a/options/mzta-options.js
+++ b/options/mzta-options.js
@@ -25,7 +25,8 @@ import {
   getChatGPTWebModelsList_HTML,
   isAPIKeyValue,
   getConnectionType,
-  setTomSelectBorder
+  setTomSelectBorder,
+  getMiczItUrl
 } from '../js/mzta-utils.js';
 import {
   injectConnectionUI,
@@ -240,6 +241,10 @@ document.addEventListener('DOMContentLoaded', async () => {
   }
 
   i18n.updateDocument();
+
+  document.getElementById('link_doc_guides').href = getMiczItUrl('thunderbird-addon-thunderai/guides/');
+  document.getElementById('link_doc_tutorial').href = getMiczItUrl('thunderbird-addon-thunderai/tutorial/');
+
   document.querySelectorAll(".option-input").forEach(element => {
     element.addEventListener("change", saveOptions);
   });
diff --git a/pages/onboarding/onboarding.html b/pages/onboarding/onboarding.html
index 54fef870..d2735fe6 100644
--- a/pages/onboarding/onboarding.html
+++ b/pages/onboarding/onboarding.html
@@ -26,8 +26,8 @@
     <div class="content">
       <div id="onboarding_doc_panel">
       <span class="doc_panel_title">__MSG_prefs_doc_title__</span>
-      <a href="https://micz.it/thunderbird-addon-thunderai/guides/" target="_blank">__MSG_prefs_doc_setup_guide__</a>
-      <a href="https://micz.it/thunderbird-addon-thunderai/tutorial/" target="_blank">__MSG_prefs_doc_custom_prompt_tutorial__</a>
+      <a id="link_doc_guides" href="#" target="_blank">__MSG_prefs_doc_setup_guide__</a>
+      <a id="link_doc_tutorial" href="#" target="_blank">__MSG_prefs_doc_custom_prompt_tutorial__</a>
     </div>
         <div class="section header">
           <h1><img src="../../images/icon.png" class="title-icon"/>ThunderAI</h1>
diff --git a/pages/onboarding/onboarding.js b/pages/onboarding/onboarding.js
index ccb9a1ce..a3c81f4b 100644
--- a/pages/onboarding/onboarding.js
+++ b/pages/onboarding/onboarding.js
@@ -18,6 +18,7 @@
 
 import { taLogger } from '../../js/mzta-logger.js';
 import { prefs_default } from '../../options/mzta-options-default.js';
+import { getMiczItUrl } from '../../js/mzta-utils.js';
 
 let taLog = null;
 
@@ -28,6 +29,9 @@ document.addEventListener('DOMContentLoaded', async () => {
     });
     taLog = new taLogger("mzta-popup",prefs.do_debug);
     i18n.updateDocument();
+
+    document.getElementById('link_doc_guides').href = getMiczItUrl('thunderbird-addon-thunderai/guides/');
+    document.getElementById('link_doc_tutorial').href = getMiczItUrl('thunderbird-addon-thunderai/tutorial/');
     if(prefs.connection_type === 'chatgpt_web'){
         let permission_chatgpt = await messenger.permissions.contains({ origins: ["https://*.chatgpt.com/*"] });
         if(permission_chatgpt === false){