diff --git a/user_manual/locale/zh_HK/LC_MESSAGES/groupware/sync_thunderbird.pot b/user_manual/locale/zh_HK/LC_MESSAGES/groupware/sync_thunderbird.pot
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+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) 2025 Nextcloud GmbH
+# This file is distributed under the same license as the Nextcloud latest User Manual package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+# 
+# Translators:
+# Café Tango, 2025
+# 
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: Nextcloud latest User Manual latest\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2025-02-12 13:02+0000\n"
+"PO-Revision-Date: 2021-12-01 18:40+0000\n"
+"Last-Translator: Café Tango, 2025\n"
+"Language-Team: Chinese (Hong Kong) (https://app.transifex.com/nextcloud/teams/64236/zh_HK/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: zh_HK\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#: ../../groupware/sync_thunderbird.rst:3
+msgid "Synchronizing with Thunderbird"
+msgstr "與 Thunderbird 同步"
+
+#: ../../groupware/sync_thunderbird.rst:5
+msgid ""
+"`Thunderbird <https://www.thunderbird.net>`_ is a feature-rich and mature "
+"mail client that can be turned into a full-fledged Personal Information "
+"Manager (PIM). Since version 102, it supports address book synchronization "
+"via CardDAV and automatic discovery of calendars and address books available"
+" on the server."
+msgstr ""
+"`Thunderbird <https://www.thunderbird.net>`_ "
+"是一個功能豐富且成熟的郵件客戶端，可以轉變為完整的個人資料管理器（PIM）。自 102 版本以來，它支持通過 CardDAV "
+"進行地址簿同步，並自動發現伺服器上的日曆和地址簿。"
+
+#: ../../groupware/sync_thunderbird.rst:9
+msgid "Recommended method"
+msgstr "推薦方法"
+
+#: ../../groupware/sync_thunderbird.rst:11
+msgid ""
+"Since Thunderbird 102, the CardDAV & CalDAV protocols are natively "
+"supported."
+msgstr "自 Thunderbird 102 開始，原生支持 CardDAV 和 CalDAV 協議。"
+
+#: ../../groupware/sync_thunderbird.rst:14
+msgid "Contacts"
+msgstr "聯絡人"
+
+#: ../../groupware/sync_thunderbird.rst:17
+msgid ""
+"On the address book view, click the down arrow near **New Address Book** and"
+" choose **Add CardDAV Address Book**."
+msgstr "在地址簿視圖中，點擊 **新地址簿** 附近的下拉箭頭，然後選擇 **添加 CardDAV 地址簿**。"
+
+#: ../../groupware/sync_thunderbird.rst:18
+msgid ""
+"In the next window, type your **Username** and **Location** (Server URL)."
+msgstr "在下一個窗口中，輸入您的 **用戶名** 和 **位置**（伺服器 URL）。"
+
+#: ../../groupware/sync_thunderbird.rst:19
+msgid ""
+"The next window will ask for your username and password for this account."
+msgstr "下一個窗口將要求您輸入此帳戶的用戶名和密碼。"
+
+#: ../../groupware/sync_thunderbird.rst:20
+msgid ""
+"The previous window will be refreshed and ask you which address books you "
+"wish to sync."
+msgstr "前一個窗口將刷新並詢問您希望同步哪些地址簿。"
+
+#: ../../groupware/sync_thunderbird.rst:21
+msgid "Choose and then click **Continue**."
+msgstr "選擇後點擊 **繼續**。"
+
+#: ../../groupware/sync_thunderbird.rst:23
+msgid ""
+"If you later want to add a new address book, you can redo all of those steps"
+" and only the books not already synchronized will be suggested."
+msgstr "如果您稍後想添加新的地址簿，可以重做所有這些步驟，系統將僅建議尚未同步的地址簿。"
+
+#: ../../groupware/sync_thunderbird.rst:25
+msgid ""
+"If your account uses two-factor authentication, you need a :ref:`dedicated "
+"app password <managing_devices>` for login rather than your regular "
+"password."
+msgstr "如果您的帳戶使用雙重身份驗證，您需要一個專用的應用密碼來登錄，而不是常規密碼。"
+
+#: ../../groupware/sync_thunderbird.rst:29
+msgid "Calendars"
+msgstr "日曆"
+
+#: ../../groupware/sync_thunderbird.rst:31
+msgid ""
+"Go to the calendar view in Thunderbird and select the **New Calendar...** "
+"button at the bottom of the left side panel."
+msgstr "在 Thunderbird 中轉到日曆視圖，然後在左側面板底部選擇 **新日曆...** 按鈕。"
+
+#: ../../groupware/sync_thunderbird.rst:32
+msgid "Choose **On the network**:"
+msgstr "選擇 **在網絡上**："
+
+#: ../../groupware/sync_thunderbird.rst:36
+msgid ""
+"Type your **Username** and **Location** (Server URL), then click on **Find "
+"Calendars**."
+msgstr "輸入您的 **用戶名** 和 **位置**（伺服器 URL），然後點擊 **查找日曆**。"
+
+#: ../../groupware/sync_thunderbird.rst:37
+msgid "Choose which calendars you want to add and click **Subscribe**"
+msgstr "選擇您想要添加的日曆，然後點擊 **訂閱**"
+
+#: ../../groupware/sync_thunderbird.rst:39
+msgid ""
+"Same thing here, if you later want to add more calendars, just redo the "
+"procedure."
+msgstr "同樣，如果您稍後想添加更多日曆，只需重做該程序即可。"
+
+#: ../../groupware/sync_thunderbird.rst:43
+msgid "Alternative: Using the CardBook add-on (Contacts only)"
+msgstr "替代方案：使用 CardBook 附加元件（僅限聯絡人）"
+
+#: ../../groupware/sync_thunderbird.rst:45
+msgid ""
+"`CardBook <https://addons.thunderbird.net/en/thunderbird/addon/cardbook/>`_ "
+"is an advanced alternative to Thunderbird's address book, which supports "
+"CardDAV."
+msgstr ""
+"`CardBook <https://addons.thunderbird.net/en/thunderbird/addon/cardbook/>`_ "
+"是 Thunderbird 地址簿的進階替代方案，支持 CardDAV。"
+
+#: ../../groupware/sync_thunderbird.rst:47
+msgid "Click the CardBook icon in the upper right corner of Thunderbird:"
+msgstr "點擊 Thunderbird 右上角的 CardBook 圖標："
+
+#: ../../groupware/sync_thunderbird.rst:51
+msgid "In CardBook:"
+msgstr "在 CardBook 中："
+
+#: ../../groupware/sync_thunderbird.rst:53
+msgid "Go to Address book > New Address book **Remote** > Next"
+msgstr "轉到地址簿 > 新建地址簿 **遠程** > 下一步"
+
+#: ../../groupware/sync_thunderbird.rst:54
+msgid ""
+"Select **CardDAV**, fill in the address of your Nextcloud server, your user "
+"name and password"
+msgstr "選擇 **CardDAV**，填寫您的 Nextcloud 伺服器地址、用戶名和密碼"
+
+#: ../../groupware/sync_thunderbird.rst:58
+msgid ""
+"Click on \"Validate\", click Next, then choose the name of the address book "
+"and click Next again:"
+msgstr "點擊「驗證」，然後點擊「下一步」，選擇地址簿的名稱，再次點擊「下一步」："
+
+#: ../../groupware/sync_thunderbird.rst:62
+msgid ""
+"When you are finished, CardBook synchronizes your address books. You can "
+"always trigger a synchronization manually by clicking \"Synchronize\" in the"
+" top left corner of CardBook:"
+msgstr "完成後，CardBook 將同步您的地址簿。您可以隨時通過點擊 CardBook 左上角的「同步」手動觸發同步："