diff --git a/user_manual/locale/nl/LC_MESSAGES/groupware/sync_thunderbird.pot b/user_manual/locale/nl/LC_MESSAGES/groupware/sync_thunderbird.pot
new file mode 100644
index 00000000000..89e4e92becc
--- /dev/null
+++ b/user_manual/locale/nl/LC_MESSAGES/groupware/sync_thunderbird.pot
@@ -0,0 +1,198 @@
+# 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:
+# Stephan Paternotte <stephan@paternottes.net>, 2025
+# Paul K, 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: Paul K, 2025\n"
+"Language-Team: Dutch (https://app.transifex.com/nextcloud/teams/64236/nl/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: nl\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#: ../../groupware/sync_thunderbird.rst:3
+msgid "Synchronizing with Thunderbird"
+msgstr "Synchronisatie met Thunderbird"
+
+#: ../../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>`_ is een volwassen mailclient met"
+" vele functies die kan worden omgezet in een volwaardige Personal "
+"Information Manager (PIM). Sinds versie 102 ondersteunt het synchronisatie "
+"van adresboeken via CardDAV en automatische ontdekking van agenda's en "
+"adresboeken die beschikbaar zijn op de server."
+
+#: ../../groupware/sync_thunderbird.rst:9
+msgid "Recommended method"
+msgstr "Aanbevolen methode"
+
+#: ../../groupware/sync_thunderbird.rst:11
+msgid ""
+"Since Thunderbird 102, the CardDAV & CalDAV protocols are natively "
+"supported."
+msgstr ""
+"Vanaf Thunderbird 102 worden de CardDAC- & CalDAV-protocollen volledig "
+"ondersteund."
+
+#: ../../groupware/sync_thunderbird.rst:14
+msgid "Contacts"
+msgstr "Contacten"
+
+#: ../../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 ""
+"Klik in het adresboekscherm op de pijl omlaag bij **Nieuw Adresboek** en "
+"kies **Voeg CardDAV Adresboek Toe**."
+
+#: ../../groupware/sync_thunderbird.rst:18
+msgid ""
+"In the next window, type your **Username** and **Location** (Server URL)."
+msgstr ""
+"Voer in het volgende venster de **Gebruikersnaam** en **Locatie** (Server "
+"URL) in."
+
+#: ../../groupware/sync_thunderbird.rst:19
+msgid ""
+"The next window will ask for your username and password for this account."
+msgstr ""
+"Het volgende venster zal om de gebruikersnaam en het wachtwoord voor dit "
+"account vragen."
+
+#: ../../groupware/sync_thunderbird.rst:20
+msgid ""
+"The previous window will be refreshed and ask you which address books you "
+"wish to sync."
+msgstr ""
+"Het voorgaande venster zal worden ververst, en vragen welk adresboek moet "
+"worden gesynchroniseerd."
+
+#: ../../groupware/sync_thunderbird.rst:21
+msgid "Choose and then click **Continue**."
+msgstr "Kies en klik dan **Doorgaan**."
+
+#: ../../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 ""
+"Als later een nieuw adresboek moet worden toegevoegd, kunnen deze stappen "
+"herhaald worden. Alleen niet-gesynchroniseerde adresboeken zullen worden "
+"voorgesteld."
+
+#: ../../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 ""
+"Als jouw account tweefactorauthenticatie gebruikt, heb je een "
+":ref:`specifiek app-wachtwoord nodig <managing_devices>` voor inloggen in "
+"plaats van je reguliere wachtwoord."
+
+#: ../../groupware/sync_thunderbird.rst:29
+msgid "Calendars"
+msgstr "Agenda's"
+
+#: ../../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 ""
+"Ga naar het Agenda-scherm in Thunderbird en klik op de **Nieuwe agenda...** "
+"knop linksonder op het paneel."
+
+#: ../../groupware/sync_thunderbird.rst:32
+msgid "Choose **On the network**:"
+msgstr "Kies **Op het netwerk**:"
+
+#: ../../groupware/sync_thunderbird.rst:36
+msgid ""
+"Type your **Username** and **Location** (Server URL), then click on **Find "
+"Calendars**."
+msgstr ""
+"Voer **Gebruikersnaam** en **Locatie** (Server URL) in en klik daarna op "
+"**Zoek agenda's**."
+
+#: ../../groupware/sync_thunderbird.rst:37
+msgid "Choose which calendars you want to add and click **Subscribe**"
+msgstr "Kies welke agenda's moeten worden toegevoegd en klik **Abonneer**"
+
+#: ../../groupware/sync_thunderbird.rst:39
+msgid ""
+"Same thing here, if you later want to add more calendars, just redo the "
+"procedure."
+msgstr ""
+"Hetzelfde hier: als later meer agenda's moeten worden toegevoegd, herhaal "
+"dan de procedure."
+
+#: ../../groupware/sync_thunderbird.rst:43
+msgid "Alternative: Using the CardBook add-on (Contacts only)"
+msgstr "Alternatief: Gebruik van de Cardbook add-on (alleen voor contacten)"
+
+#: ../../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/>`_ "
+"is een geavanceerd alternatief voor het adresboek van Thunderbird, incl. "
+"ondersteuning voor CardDAV."
+
+#: ../../groupware/sync_thunderbird.rst:47
+msgid "Click the CardBook icon in the upper right corner of Thunderbird:"
+msgstr "Klik op het Carbook-icoon rechtsboven in Thunderbird:"
+
+#: ../../groupware/sync_thunderbird.rst:51
+msgid "In CardBook:"
+msgstr "In Cardbook:"
+
+#: ../../groupware/sync_thunderbird.rst:53
+msgid "Go to Address book > New Address book **Remote** > Next"
+msgstr "Ga naar Adresboek > Nieuw adresbook **Op Afstand** > Volgende"
+
+#: ../../groupware/sync_thunderbird.rst:54
+msgid ""
+"Select **CardDAV**, fill in the address of your Nextcloud server, your user "
+"name and password"
+msgstr ""
+"Kies **CardDAV**, vul het adres van de Nexctloud server in, en "
+"gebruikersnaam en wachtwoord"
+
+#: ../../groupware/sync_thunderbird.rst:58
+msgid ""
+"Click on \"Validate\", click Next, then choose the name of the address book "
+"and click Next again:"
+msgstr ""
+"Klik op \"Valideer\", klik Volgende, kies de naam van het adresboek en klik "
+"weer op Volgende:"
+
+#: ../../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 ""
+"Als dit gedaan is, zal Cardbook de adresboeken synchroniseren. Een "
+"synchronisatie kan altijd handmatig worden gestart door te klikken op "
+"\"Synchroniseer\", linksboven in Cardbook:"