diff --git a/src/Components/Attachment.tsx b/src/Components/Attachment.tsx
index 65fe23bea..fb1299f67 100644
--- a/src/Components/Attachment.tsx
+++ b/src/Components/Attachment.tsx
@@ -85,6 +85,10 @@ function getDownloadMessage(subject: string) {
   switch (currentLanguage()) {
     case 'de':
       return `${subject} herunterladen`
+    case 'fr':
+      return `Télécharger ${subject}`
+    case 'pl':
+      return `Pobierz ${subject}`
     default:
       return `Download ${subject}`
   }
diff --git a/src/Components/Loading.tsx b/src/Components/Loading.tsx
index 1704e5818..9ad5441a3 100644
--- a/src/Components/Loading.tsx
+++ b/src/Components/Loading.tsx
@@ -31,6 +31,10 @@ function getMessage(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'Daten werden geladen…'
+    case 'fr':
+      return 'Chargement des données…'
+    case 'pl':
+      return 'Ładowanie danych…'
     default:
       return 'Loading data…'
   }
diff --git a/src/Objs/Product/ProductComponent.tsx b/src/Objs/Product/ProductComponent.tsx
index 2a25e32c1..6c154d46c 100644
--- a/src/Objs/Product/ProductComponent.tsx
+++ b/src/Objs/Product/ProductComponent.tsx
@@ -295,4 +295,29 @@ const LOCALIZERS = {
     downloads: 'Downloads',
     suitableAccessories: 'Suitable accessories',
   },
+  fr: {
+    cartAddedMessage: '__product__ a été ajouté au panier.',
+    cartAddLabel: 'Ajouter au panier',
+    cartRemovedMessage: '__product__ a été retiré du panier.',
+    cartRemoveLabel: 'Retirer du panier',
+    cartLoginLabel: 'Se connecter',
+    cartUnavailableMessage:
+      'Veuillez vous connecter pour ajouter __product__ dans le panier.',
+    data: 'Données',
+    description: 'Description',
+    downloads: 'Téléchargements',
+    suitableAccessories: 'Accessoires appropriés',
+  },
+  pl: {
+    cartAddedMessage: '__product__ został dodany do koszyka.',
+    cartAddLabel: 'Dodaj do koszyka',
+    cartRemovedMessage: '__product__ został usunięty z koszyka.',
+    cartRemoveLabel: 'Usuń z koszyka',
+    cartLoginLabel: 'Zaloguj się',
+    cartUnavailableMessage: 'Zaloguj się, aby dodać __product__ do koszyka.',
+    data: 'Dane',
+    description: 'Opis',
+    downloads: 'Pobrania',
+    suitableAccessories: 'Odpowiednie akcesoria',
+  },
 }
diff --git a/src/Objs/ProductCategory/ProductCategoryComponent.tsx b/src/Objs/ProductCategory/ProductCategoryComponent.tsx
index 46990ffa1..058846ba6 100644
--- a/src/Objs/ProductCategory/ProductCategoryComponent.tsx
+++ b/src/Objs/ProductCategory/ProductCategoryComponent.tsx
@@ -67,4 +67,16 @@ const LOCALIZERS = {
     items1: '1 item',
     itemsMany: '__count__ items',
   },
+  fr: {
+    headline: 'Catégorie de produit',
+    items0: 'Aucun article',
+    items1: '1 article',
+    itemsMany: '__count__ articles',
+  },
+  pl: {
+    headline: 'Kategoria produktu',
+    items0: 'Brak produktów',
+    items1: '1 produkt',
+    itemsMany: '__count__ produktów',
+  },
 }
diff --git a/src/Widgets/CheckoutButtonWidget/CheckoutButtonWidgetComponent.tsx b/src/Widgets/CheckoutButtonWidget/CheckoutButtonWidgetComponent.tsx
index 6d4288c71..d65a053da 100644
--- a/src/Widgets/CheckoutButtonWidget/CheckoutButtonWidgetComponent.tsx
+++ b/src/Widgets/CheckoutButtonWidget/CheckoutButtonWidgetComponent.tsx
@@ -70,6 +70,10 @@ function getErrorMessage(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'Wir bedauern die Unannehmlichkeiten.'
+    case 'fr':
+      return 'Nous sommes désolés pour le dérangement.'
+    case 'pl':
+      return 'Przepraszamy za utrudnienia.'
     default:
       return 'We’re sorry for the inconvenience.'
   }
diff --git a/src/Widgets/DataDeleteButtonWidget/DataDeleteButtonWidgetComponent.tsx b/src/Widgets/DataDeleteButtonWidget/DataDeleteButtonWidgetComponent.tsx
index 70a3a08ed..df1a5631f 100644
--- a/src/Widgets/DataDeleteButtonWidget/DataDeleteButtonWidgetComponent.tsx
+++ b/src/Widgets/DataDeleteButtonWidget/DataDeleteButtonWidgetComponent.tsx
@@ -120,6 +120,10 @@ function getErrorMessage(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'Aktion fehlgeschlagen. Wir bedauern die Unannehmlichkeiten.'
+    case 'fr':
+      return 'L’opération a échoué. Nous sommes désolés pour le désagrément.'
+    case 'pl':
+      return 'Operacja nie powiodła się. Przepraszamy za utrudnienia.'
     default:
       return 'Operation failed. We’re sorry for the inconvenience.'
   }
diff --git a/src/Widgets/DataFormContainerWidget/DataFormContainerWidgetComponent.tsx b/src/Widgets/DataFormContainerWidget/DataFormContainerWidgetComponent.tsx
index 210abc9f0..1e22758d6 100644
--- a/src/Widgets/DataFormContainerWidget/DataFormContainerWidgetComponent.tsx
+++ b/src/Widgets/DataFormContainerWidget/DataFormContainerWidgetComponent.tsx
@@ -149,6 +149,10 @@ function getErrorMessage(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'Wir bedauern die Unannehmlichkeiten.'
+    case 'fr':
+      return 'Nous sommes désolés pour le désagrément.'
+    case 'pl':
+      return 'Przepraszamy za utrudnienia.'
     default:
       return 'We’re sorry for the inconvenience.'
   }
diff --git a/src/Widgets/DataFormUploadWidget/DataFormUploadWidgetComponent.tsx b/src/Widgets/DataFormUploadWidget/DataFormUploadWidgetComponent.tsx
index 92e65f7c0..292d8ed21 100644
--- a/src/Widgets/DataFormUploadWidget/DataFormUploadWidgetComponent.tsx
+++ b/src/Widgets/DataFormUploadWidget/DataFormUploadWidgetComponent.tsx
@@ -126,6 +126,10 @@ function getDropMessage(multiple: boolean) {
     switch (currentLanguage()) {
       case 'de':
         return 'Dateien auswählen oder hierher ziehen.'
+      case 'fr':
+        return 'Choisissez des fichiers ou faites-les glisser ici.'
+      case 'pl':
+        return 'Wybierz pliki lub przeciągnij je tutaj.'
       default:
         return 'Choose files or drag them here.'
     }
@@ -134,6 +138,10 @@ function getDropMessage(multiple: boolean) {
   switch (currentLanguage()) {
     case 'de':
       return 'Datei auswählen oder hierher ziehen.'
+    case 'fr':
+      return 'Choisissez un fichier ou faites-le glisser ici.'
+    case 'pl':
+      return 'Wybierz plik lub przeciągnij go tutaj.'
     default:
       return 'Choose a file or drag it here.'
   }
@@ -146,6 +154,16 @@ function getTooLargeMessage() {
         MAX_FILE_SIZE,
         { locale: 'de' },
       )} hoch.`
+    case 'fr':
+      return `Un ou plusieurs fichiers sont trop volumineux. Veuillez télécharger des fichiers d'une taille maximale de ${prettyBytes(
+        MAX_FILE_SIZE,
+        { locale: 'fr' },
+      )}.`
+    case 'pl':
+      return `Jeden lub kilka plików jest za duży. Proszę przesłać pliki o maksymalnym rozmiarze ${prettyBytes(
+        MAX_FILE_SIZE,
+        { locale: 'pl' },
+      )}.`
     default:
       return `One or more files are too large. Please upload files up to ${prettyBytes(
         MAX_FILE_SIZE,
diff --git a/src/Widgets/DataIconWidget/DataIconWidgetComponent.tsx b/src/Widgets/DataIconWidget/DataIconWidgetComponent.tsx
index 79932398e..ead7c4673 100644
--- a/src/Widgets/DataIconWidget/DataIconWidgetComponent.tsx
+++ b/src/Widgets/DataIconWidget/DataIconWidgetComponent.tsx
@@ -75,6 +75,10 @@ function localizeNotAvailable(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'k.A.'
+    case 'fr':
+      return 'N/A'
+    case 'pl':
+      return 'N/D'
     default:
       return 'N/A'
   }
diff --git a/src/Widgets/DataLabelWidget/DataLabelWidgetComponent.tsx b/src/Widgets/DataLabelWidget/DataLabelWidgetComponent.tsx
index 228c39088..240e88a52 100644
--- a/src/Widgets/DataLabelWidget/DataLabelWidgetComponent.tsx
+++ b/src/Widgets/DataLabelWidget/DataLabelWidgetComponent.tsx
@@ -153,6 +153,10 @@ function localizeNotAvailable(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'k.A.'
+    case 'fr':
+      return 'N/D'
+    case 'pl':
+      return 'bd.'
     default:
       return 'N/A'
   }
diff --git a/src/Widgets/TopNavigationWidget/SubComponents/CurrentUserDropdown.tsx b/src/Widgets/TopNavigationWidget/SubComponents/CurrentUserDropdown.tsx
index 1912bc11b..4dd609b4a 100644
--- a/src/Widgets/TopNavigationWidget/SubComponents/CurrentUserDropdown.tsx
+++ b/src/Widgets/TopNavigationWidget/SubComponents/CurrentUserDropdown.tsx
@@ -139,6 +139,10 @@ function localizeLogOutLabel(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'Abmelden'
+    case 'fr':
+      return 'Déconnexion'
+    case 'pl':
+      return 'Wyloguj się'
     default:
       return 'Log out'
   }
diff --git a/src/Widgets/TopNavigationWidget/SubComponents/SearchBox.tsx b/src/Widgets/TopNavigationWidget/SubComponents/SearchBox.tsx
index e368ce4c8..6febec3aa 100644
--- a/src/Widgets/TopNavigationWidget/SubComponents/SearchBox.tsx
+++ b/src/Widgets/TopNavigationWidget/SubComponents/SearchBox.tsx
@@ -48,6 +48,10 @@ function localizeSearchInputLabel(): string {
   switch (currentLanguage()) {
     case 'de':
       return 'Suche'
+    case 'fr':
+      return 'Recherche'
+    case 'pl':
+      return 'Szukaj'
     default:
       return 'Search'
   }