diff --git a/l10n/be/viewer.ftl b/l10n/be/viewer.ftl
index ee1f430104d1b..130789f5be774 100644
--- a/l10n/be/viewer.ftl
+++ b/l10n/be/viewer.ftl
@@ -51,12 +51,6 @@ pdfjs-download-button-label = Сцягнуць
 pdfjs-bookmark-button =
     .title = Дзейная старонка (паглядзець URL-адрас з дзейнай старонкі)
 pdfjs-bookmark-button-label = Цяперашняя старонка
-# Used in Firefox for Android.
-pdfjs-open-in-app-button =
-    .title = Адкрыць у праграме
-# Used in Firefox for Android.
-# Length of the translation matters since we are in a mobile context, with limited screen estate.
-pdfjs-open-in-app-button-label = Адкрыць у праграме
 
 ##  Secondary toolbar and context menu
 
@@ -306,8 +300,6 @@ pdfjs-editor-stamp-button-label = Дадаць або змяніць выявы
 pdfjs-editor-highlight-button =
     .title = Вылучэнне
 pdfjs-editor-highlight-button-label = Вылучэнне
-pdfjs-highlight-floating-button =
-    .title = Вылучэнне
 pdfjs-highlight-floating-button1 =
     .title = Падфарбаваць
     .aria-label = Падфарбаваць
@@ -402,3 +394,62 @@ pdfjs-editor-colorpicker-red =
 pdfjs-editor-highlight-show-all-button-label = Паказаць усе
 pdfjs-editor-highlight-show-all-button =
     .title = Паказаць усе
+
+## New alt-text dialog
+## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
+
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Рэдагаваць тэкст для атрыбута alt (апісанне выявы)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Дадаць тэкст для атрыбута alt (апісанне выявы)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Напішыце сваё апісанне тут…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Кароткае апісанне для людзей, якія не бачаць выяву, ці калі выява не загружаецца.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Гэты тэкст для атрыбута alt быў створаны аўтаматычна і можа быць недакладным
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Гэты тэкст для атрыбута alt быў створаны аўтаматычна.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Даведацца больш
+pdfjs-editor-new-alt-text-create-automatically-button-label = Ствараць тэкст для атрыбута alt аўтаматычна
+pdfjs-editor-new-alt-text-not-now-button = Не зараз
+pdfjs-editor-new-alt-text-error-title = Не ўдалося аўтаматычна стварыць тэкст для атрыбута alt
+pdfjs-editor-new-alt-text-error-description = Калі ласка, напішыце ўласны тэкст для атрыбута alt або паўтарыце спробу пазней.
+pdfjs-editor-new-alt-text-error-close-button = Закрыць
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Сцягванне мадэлі ШІ для тэксту для атрыбута alt ({ $downloadedSize } з { $totalSize } МБ)
+    .aria-valuetext = Сцягванне мадэлі ШІ для тэксту для атрыбута alt ({ $downloadedSize } з { $totalSize } МБ)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Тэкст для атрыбута alt дададзены
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Адсутнічае тэкст для атрыбута alt
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Водгук на тэкст для атрыбута alt
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Створаны аўтаматычна: { $generatedAltText }
+
+## Image alt-text settings
+
+pdfjs-image-alt-text-settings-button =
+    .title = Налады альтэрнатыўнага тэксту для выявы
+pdfjs-image-alt-text-settings-button-label = Налады альтэрнатыўнага тэксту для выявы
+pdfjs-editor-alt-text-settings-dialog-label = Налады альтэрнатыўнага тэксту для выявы
+pdfjs-editor-alt-text-settings-automatic-title = Аўтаматычны тэкст для атрыбута alt
+pdfjs-editor-alt-text-settings-create-model-button-label = Ствараць тэкст для атрыбута alt аўтаматычна
+pdfjs-editor-alt-text-settings-create-model-description = Прапануе апісанні, каб дапамагчы людзям, якія не бачаць выяву, ці калі выява не загружаецца.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Мадэль ШІ для тэксту для атрыбута alt ({ $totalSize } МБ)
+pdfjs-editor-alt-text-settings-ai-model-description = Працуе лакальна на вашай прыладзе, таму вашы звесткі застаюцца прыватнымі. Патрабуецца для аўтаматычнага альтэрнатыўнага тэксту.
+pdfjs-editor-alt-text-settings-delete-model-button = Выдаліць
+pdfjs-editor-alt-text-settings-download-model-button = Сцягнуць
+pdfjs-editor-alt-text-settings-downloading-model-button = Сцягванне…
+pdfjs-editor-alt-text-settings-editor-title = Рэдактар тэксту для атрыбута alt
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Адразу паказваць рэдактар тэксту для атрыбута alt пры даданні выявы
+pdfjs-editor-alt-text-settings-show-dialog-description = Дапамагае пераканацца, што ўсе вашы выявы маюць альтэрнатыўны тэкст.
+pdfjs-editor-alt-text-settings-close-button = Закрыць
diff --git a/l10n/cs/viewer.ftl b/l10n/cs/viewer.ftl
index 1adf435e970d3..5a85adc9f3561 100644
--- a/l10n/cs/viewer.ftl
+++ b/l10n/cs/viewer.ftl
@@ -409,6 +409,8 @@ pdfjs-editor-new-alt-text-textarea =
 # This text refers to the alt text box above this description. It offers a definition of alt text.
 pdfjs-editor-new-alt-text-description = Krátký popis pro lidi, kteří neuvidí obrázek nebo když se obrázek nenačítá.
 # This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Tento alternativní text byl vytvořen automaticky a může být nepřesný.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
 pdfjs-editor-new-alt-text-disclaimer = Tento alternativní text byl vytvořen automaticky.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Více informací
 pdfjs-editor-new-alt-text-create-automatically-button-label = Vytvořit alternativní text automaticky
@@ -416,6 +418,40 @@ pdfjs-editor-new-alt-text-not-now-button = Teď ne
 pdfjs-editor-new-alt-text-error-title = Nepodařilo se automaticky vytvořit alternativní text
 pdfjs-editor-new-alt-text-error-description = Napište prosím vlastní alternativní text nebo to zkuste znovu později.
 pdfjs-editor-new-alt-text-error-close-button = Zavřít
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Stahuje se model AI pro alternativní texty ({ $downloadedSize } z { $totalSize } MB)
+    .aria-valuetext = Stahuje se model AI pro alternativní texty ({ $downloadedSize } z { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Alternativní text byl přidán
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Chybí alternativní text
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Zkontrolovat alternativní text
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Vytvořeno automaticky: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Nastavení alternativního textu obrázku
+pdfjs-image-alt-text-settings-button-label = Nastavení alternativního textu obrázku
+pdfjs-editor-alt-text-settings-dialog-label = Nastavení alternativního textu obrázku
+pdfjs-editor-alt-text-settings-automatic-title = Automatický alternativní text
+pdfjs-editor-alt-text-settings-create-model-button-label = Vytvořit alternativní text automaticky
+pdfjs-editor-alt-text-settings-create-model-description = Navrhuje popisy, které pomohou lidem, kteří nevidí obrázek nebo když se obrázek nenačte.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Model AI pro alternativní text ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Běží lokálně na vašem zařízení, takže vaše data zůstávají v bezpečí. Vyžadováno pro automatický alternativní text.
+pdfjs-editor-alt-text-settings-delete-model-button = Smazat
+pdfjs-editor-alt-text-settings-download-model-button = Stáhnout
+pdfjs-editor-alt-text-settings-downloading-model-button = Probíhá stahování...
+pdfjs-editor-alt-text-settings-editor-title = Editor alternativního textu
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Při přidávání obrázku hned zobrazit editor alternativního textu
+pdfjs-editor-alt-text-settings-show-dialog-description = Pomůže vám zajistit, aby všechny vaše obrázky obsahovaly alternativní text.
+pdfjs-editor-alt-text-settings-close-button = Zavřít
diff --git a/l10n/cy/viewer.ftl b/l10n/cy/viewer.ftl
index 795438075df80..b6da479820bfb 100644
--- a/l10n/cy/viewer.ftl
+++ b/l10n/cy/viewer.ftl
@@ -413,7 +413,7 @@ pdfjs-editor-new-alt-text-textarea =
 # This text refers to the alt text box above this description. It offers a definition of alt text.
 pdfjs-editor-new-alt-text-description = Disgrifiad byr ar gyfer pobl sydd ddim yn gallu gweld y ddelwedd neu pan nad yw'r ddelwedd yn llwytho.
 # This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
-pdfjs-editor-new-alt-text-disclaimer = Crëwyd y testun amgen hwn yn awtomatig.
+pdfjs-editor-new-alt-text-disclaimer1 = Cafodd y testun amgen hwn ei greu'n awtomatig a gall fod yn anghywir.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Dysgu rhagor
 pdfjs-editor-new-alt-text-create-automatically-button-label = Creu testun amgen yn awtomatig
 pdfjs-editor-new-alt-text-not-now-button = Nid nawr
diff --git a/l10n/da/viewer.ftl b/l10n/da/viewer.ftl
index 968b22ffc6981..c5cb343f0ffd8 100644
--- a/l10n/da/viewer.ftl
+++ b/l10n/da/viewer.ftl
@@ -51,12 +51,6 @@ pdfjs-download-button-label = Hent
 pdfjs-bookmark-button =
     .title = Aktuel side (vis URL fra den aktuelle side)
 pdfjs-bookmark-button-label = Aktuel side
-# Used in Firefox for Android.
-pdfjs-open-in-app-button =
-    .title = Åbn i app
-# Used in Firefox for Android.
-# Length of the translation matters since we are in a mobile context, with limited screen estate.
-pdfjs-open-in-app-button-label = Åbn i app
 
 ##  Secondary toolbar and context menu
 
@@ -304,8 +298,6 @@ pdfjs-editor-stamp-button-label = Tilføj eller rediger billeder
 pdfjs-editor-highlight-button =
     .title = Fremhæv
 pdfjs-editor-highlight-button-label = Fremhæv
-pdfjs-highlight-floating-button =
-    .title = Fremhæv
 pdfjs-highlight-floating-button1 =
     .title = Fremhæv
     .aria-label = Fremhæv
@@ -400,3 +392,60 @@ pdfjs-editor-colorpicker-red =
 pdfjs-editor-highlight-show-all-button-label = Vis alle
 pdfjs-editor-highlight-show-all-button =
     .title = Vis alle
+
+## New alt-text dialog
+## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
+
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Rediger alternativ tekst (billedbeskrivelse)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Tilføj alternativ tekst (billedbeskrivelse)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Skriv din beskrivelse her...
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Kort beskrivelse til personer, der ikke kan se billedet, eller når billedet ikke indlæses.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Denne alternative tekst blev oprettet automatisk og kan være upræcis.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Læs mere
+pdfjs-editor-new-alt-text-create-automatically-button-label = Opret alternativ tekst automatisk
+pdfjs-editor-new-alt-text-not-now-button = Ikke nu
+pdfjs-editor-new-alt-text-error-title = Kunne ikke oprette alternativ tekst automatisk
+pdfjs-editor-new-alt-text-error-description = Skriv din egen alternative tekst, eller prøv igen senere.
+pdfjs-editor-new-alt-text-error-close-button = Luk
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Henter alternativ tekst AI-model ({ $downloadedSize } af { $totalSize } MB)
+    .aria-valuetext = Henter alternativ tekst AI-model ({ $downloadedSize } af { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Alternativ tekst tilføjet
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Mangler alternativ tekst
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Gennemgå alternativ tekst
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Oprettet automatisk: { $generatedAltText }
+
+## Image alt-text settings
+
+pdfjs-image-alt-text-settings-button =
+    .title = Indstillinger for alternativ tekst til billeder
+pdfjs-image-alt-text-settings-button-label = Indstillinger for alternativ tekst til billeder
+pdfjs-editor-alt-text-settings-dialog-label = Indstillinger for alternativ tekst til billeder
+pdfjs-editor-alt-text-settings-automatic-title = Automatisk alternativ tekst
+pdfjs-editor-alt-text-settings-create-model-button-label = Opret alternativ tekst automatisk
+pdfjs-editor-alt-text-settings-create-model-description = Foreslår beskrivelser for at hjælpe folk, der ikke kan se billedet, eller når billedet ikke indlæses.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = AI-model til at oprette alternative tekster ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Kører lokalt på din enhed, så dine data forbliver private. Påkrævet for at anvende automatisk alternativ tekst.
+pdfjs-editor-alt-text-settings-delete-model-button = Slet
+pdfjs-editor-alt-text-settings-download-model-button = Hent
+pdfjs-editor-alt-text-settings-downloading-model-button = Henter…
+pdfjs-editor-alt-text-settings-editor-title = Redigering af alternativ tekst
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Vis redigering af alternativ tekst med det samme, når et billede tilføjes
+pdfjs-editor-alt-text-settings-show-dialog-description = Hjælper dig med at sikre, at alle dine billeder har alternativ tekst.
+pdfjs-editor-alt-text-settings-close-button = Luk
diff --git a/l10n/de/viewer.ftl b/l10n/de/viewer.ftl
index c7e217f2f8097..24fcb103fcc3c 100644
--- a/l10n/de/viewer.ftl
+++ b/l10n/de/viewer.ftl
@@ -396,10 +396,58 @@ pdfjs-editor-highlight-show-all-button =
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Alternativ-Text (Grafikbeschreibung) bearbeiten
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Alternativ-Text (Grafikbeschreibung) hinzufügen
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Schreiben Sie Ihre Beschreibung hier…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Kurze Beschreibung für Personen, die die Grafik nicht sehen können, oder wenn die Grafik nicht geladen wird.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Dieser Alternativ-Text wurde automatisch erstellt und könnte ungenau sein.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Dieser Alternativ-Text wurde automatisch erstellt.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Weitere Informationen
+pdfjs-editor-new-alt-text-create-automatically-button-label = Alternativ-Text automatisch erstellen
+pdfjs-editor-new-alt-text-not-now-button = Nicht jetzt
+pdfjs-editor-new-alt-text-error-title = Alternativ-Text konnte nicht automatisch erstellt werden
+pdfjs-editor-new-alt-text-error-description = Bitte schreiben Sie Ihren eigenen Alternativ-Text oder versuchen Sie es später erneut.
+pdfjs-editor-new-alt-text-error-close-button = Schließen
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Alternativ-Text-KI-Modell wird heruntergeladen ({ $downloadedSize } von { $totalSize } MB)
+    .aria-valuetext = Alternativ-Text-KI-Modell wird heruntergeladen ({ $downloadedSize } von { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Alternativ-Text hinzugefügt
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Fehlender Alternativ-Text
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Alternativ-Text überprüfen
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Automatisch erstellt: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Alternativ-Text-Einstellungen für Grafiken
+pdfjs-image-alt-text-settings-button-label = Alternativ-Text-Einstellungen für Grafiken
+pdfjs-editor-alt-text-settings-dialog-label = Alternativ-Text-Einstellungen für Grafiken
+pdfjs-editor-alt-text-settings-automatic-title = Automatischer Alternativ-Text
+pdfjs-editor-alt-text-settings-create-model-button-label = Alternativ-Text automatisch erstellen
+pdfjs-editor-alt-text-settings-create-model-description = Schlägt Beschreibungen vor, um Personen zu helfen, die die Grafik nicht sehen können, oder wenn die Grafik nicht geladen wird.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Alternativ-Text-KI-Modell ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Wird lokal auf Ihrem Gerät ausgeführt, sodass Ihre Daten privat bleiben. Erforderlich für automatischen Alternativ-Text.
 pdfjs-editor-alt-text-settings-delete-model-button = Löschen
 pdfjs-editor-alt-text-settings-download-model-button = Herunterladen
 pdfjs-editor-alt-text-settings-downloading-model-button = Wird heruntergeladen…
+pdfjs-editor-alt-text-settings-editor-title = Alternativ-Texteditor
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Alternativ-Texteditor beim Hinzufügen einer Grafik anzeigen
+pdfjs-editor-alt-text-settings-show-dialog-description = Hilft Ihnen, sicherzustellen, dass alle Ihre Grafiken Alternativ-Text haben.
 pdfjs-editor-alt-text-settings-close-button = Schließen
diff --git a/l10n/dsb/viewer.ftl b/l10n/dsb/viewer.ftl
index 6e9c97b845354..6ac79c5a4c6a7 100644
--- a/l10n/dsb/viewer.ftl
+++ b/l10n/dsb/viewer.ftl
@@ -409,7 +409,7 @@ pdfjs-editor-new-alt-text-textarea =
 # This text refers to the alt text box above this description. It offers a definition of alt text.
 pdfjs-editor-new-alt-text-description = Krotke wopisanje za luźe, kótarež njamóžośo wobraz wiźeś abo gaž se wobraz njezacytajo.
 # This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
-pdfjs-editor-new-alt-text-disclaimer = Toś ten alternatiwny tekst jo se awtomatiski napórał.
+pdfjs-editor-new-alt-text-disclaimer1 = Toś ten alternatiwny tekst jo se awtomatiski napórał a jo snaź njedokradny.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Dalšne informacije
 pdfjs-editor-new-alt-text-create-automatically-button-label = Alternatiwny tekst awtomatiski napóraś
 pdfjs-editor-new-alt-text-not-now-button = Nic něnto
diff --git a/l10n/fi/viewer.ftl b/l10n/fi/viewer.ftl
index b56bde6d678e3..ebec8916560a7 100644
--- a/l10n/fi/viewer.ftl
+++ b/l10n/fi/viewer.ftl
@@ -405,6 +405,8 @@ pdfjs-editor-new-alt-text-textarea =
 # This text refers to the alt text box above this description. It offers a definition of alt text.
 pdfjs-editor-new-alt-text-description = Lyhyt kuvaus ihmisille, jotka eivät näe kuvaa tai kun kuva ei lataudu.
 # This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Tämä vaihtoehtoinen teksti luotiin automaattisesti, ja se voi olla epätarkka.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
 pdfjs-editor-new-alt-text-disclaimer = Tämä vaihtoehtoinen teksti luotiin automaattisesti.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Lue lisää
 pdfjs-editor-new-alt-text-create-automatically-button-label = Luo vaihtoehtoinen teksti automaattisesti
diff --git a/l10n/fr/viewer.ftl b/l10n/fr/viewer.ftl
index 97c5e9850ed97..064e3b049f604 100644
--- a/l10n/fr/viewer.ftl
+++ b/l10n/fr/viewer.ftl
@@ -392,10 +392,58 @@ pdfjs-editor-highlight-show-all-button =
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Modifier le texte alternatif (description de l’image)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Ajouter du texte alternatif (description de l’image)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Rédigez votre description ici…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Courte description pour les personnes qui ne peuvent pas voir l’image ou lorsque l’image ne se charge pas.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Ce texte alternatif a été créé automatiquement et peut être inexact.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Ce texte alternatif a été créé automatiquement.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = En savoir plus
+pdfjs-editor-new-alt-text-create-automatically-button-label = Créer automatiquement le texte alternatif
+pdfjs-editor-new-alt-text-not-now-button = Pas maintenant
+pdfjs-editor-new-alt-text-error-title = Impossible de créer automatiquement le texte alternatif
+pdfjs-editor-new-alt-text-error-description = Veuillez rédiger votre propre texte alternatif ou réessayer plus tard.
+pdfjs-editor-new-alt-text-error-close-button = Fermer
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Téléchargement du modèle d’IA de texte alternatif ({ $downloadedSize } sur { $totalSize } Mo)
+    .aria-valuetext = Téléchargement du modèle d’IA de texte alternatif ({ $downloadedSize } sur { $totalSize } Mo)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Texte alternatif ajouté
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Texte alternatif manquant
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Réviser le texte alternatif
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Créé automatiquement : { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Paramètres du texte alternatif des images
+pdfjs-image-alt-text-settings-button-label = Paramètres du texte alternatif des images
+pdfjs-editor-alt-text-settings-dialog-label = Paramètres du texte alternatif des images
+pdfjs-editor-alt-text-settings-automatic-title = Texte alternatif automatique
+pdfjs-editor-alt-text-settings-create-model-button-label = Créer automatiquement le texte alternatif
+pdfjs-editor-alt-text-settings-create-model-description = Suggère des descriptions pour aider les personnes qui ne peuvent pas voir l’image ou lorsque l’image ne se charge pas.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Modèle d’IA de texte alternatif ({ $totalSize } Mo)
+pdfjs-editor-alt-text-settings-ai-model-description = Fonctionne localement sur votre appareil, vos données restent privées. Obligatoire pour la génération automatique de texte alternatif.
 pdfjs-editor-alt-text-settings-delete-model-button = Supprimer
 pdfjs-editor-alt-text-settings-download-model-button = Télécharger
 pdfjs-editor-alt-text-settings-downloading-model-button = Téléchargement…
+pdfjs-editor-alt-text-settings-editor-title = Éditeur de texte alternatif
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Afficher l’éditeur de texte alternatif immédiatement lors de l’ajout d’une image
+pdfjs-editor-alt-text-settings-show-dialog-description = Vous aide à vous assurer que toutes vos images ont du texte alternatif.
 pdfjs-editor-alt-text-settings-close-button = Fermer
diff --git a/l10n/fur/viewer.ftl b/l10n/fur/viewer.ftl
index 8e8c8a0179bdc..79688eea3d5d8 100644
--- a/l10n/fur/viewer.ftl
+++ b/l10n/fur/viewer.ftl
@@ -51,12 +51,6 @@ pdfjs-download-button-label = Discjame
 pdfjs-bookmark-button =
     .title = Pagjine corinte (mostre URL de pagjine atuâl)
 pdfjs-bookmark-button-label = Pagjine corinte
-# Used in Firefox for Android.
-pdfjs-open-in-app-button =
-    .title = Vierç te aplicazion
-# Used in Firefox for Android.
-# Length of the translation matters since we are in a mobile context, with limited screen estate.
-pdfjs-open-in-app-button-label = Vierç te aplicazion
 
 ##  Secondary toolbar and context menu
 
@@ -304,8 +298,6 @@ pdfjs-editor-stamp-button-label = Zonte o modifiche imagjins
 pdfjs-editor-highlight-button =
     .title = Evidenzie
 pdfjs-editor-highlight-button-label = Evidenzie
-pdfjs-highlight-floating-button =
-    .title = Evidenzie
 pdfjs-highlight-floating-button1 =
     .title = Evidenzie
     .aria-label = Evidenzie
@@ -400,3 +392,62 @@ pdfjs-editor-colorpicker-red =
 pdfjs-editor-highlight-show-all-button-label = Mostre dut
 pdfjs-editor-highlight-show-all-button =
     .title = Mostre dut
+
+## New alt-text dialog
+## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
+
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Modifiche test alternatîf (descrizion de imagjin)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Zonte test alternatîf (descrizion de imagjin)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Scrîf achì la tô descrizion…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Curte descrizion par personis che no rivin a viodi la imagjin, o che e ven mostrade cuant che no si rive a cjariâle.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Chest test alternatîf al è stât creât in automatic e al è pussibil che nol sedi cret.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Chest test alternatîf al è stât creât in automatic.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Plui informazions
+pdfjs-editor-new-alt-text-create-automatically-button-label = Cree test alternatîf in automatic
+pdfjs-editor-new-alt-text-not-now-button = No cumò
+pdfjs-editor-new-alt-text-error-title = Impussibil creâ test alternatîf in automatic
+pdfjs-editor-new-alt-text-error-description = Scrîf il to test alternatîf o prove plui tart.
+pdfjs-editor-new-alt-text-error-close-button = Siere
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Daûr a discjariâil model IA pal test alternatîf ({ $downloadedSize } di { $totalSize } MB)
+    .aria-valuetext = Daûr a discjariâ il model IA pal test alternatîf ({ $downloadedSize } di { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Test alternatîf zontât
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Al mancje il test alternatîf
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Verifiche test alternatîf
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Creât in automatic: { $generatedAltText }
+
+## Image alt-text settings
+
+pdfjs-image-alt-text-settings-button =
+    .title = Impostazions test alternatîf pes imagjins
+pdfjs-image-alt-text-settings-button-label = Impostazions test alternatîf pes imagjins
+pdfjs-editor-alt-text-settings-dialog-label = Impostazions test alternatîf pes imagjins
+pdfjs-editor-alt-text-settings-automatic-title = Test alternatîf automatic
+pdfjs-editor-alt-text-settings-create-model-button-label = Cree test alternatîf in automatic
+pdfjs-editor-alt-text-settings-create-model-description = Al sugjerìs descrizions par judâ lis personis che no rivin a viodi la imagjin o cuant che la imagjin no ven cjariade.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Model IA pal test alternatîf ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Al ven eseguît in locâl sul to dispositîf, cussì che i tiei dâts a restin riservâts. Al è necessari pe gjenerazion automatiche dal test alternatîf.
+pdfjs-editor-alt-text-settings-delete-model-button = Elimine
+pdfjs-editor-alt-text-settings-download-model-button = Discjame
+pdfjs-editor-alt-text-settings-downloading-model-button = Daûr a discjariâ…
+pdfjs-editor-alt-text-settings-editor-title = Modifiche test alternatîf
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Mostre l'editôr dal test alternatîf a pene che e ven zontade une imagjin
+pdfjs-editor-alt-text-settings-show-dialog-description = Ti jude a sigurâti che dutis lis tôs imagjins a vedin il test alternatîf.
+pdfjs-editor-alt-text-settings-close-button = Siere
diff --git a/l10n/he/viewer.ftl b/l10n/he/viewer.ftl
index 50d7eaaa56a98..e581b3e799459 100644
--- a/l10n/he/viewer.ftl
+++ b/l10n/he/viewer.ftl
@@ -405,7 +405,7 @@ pdfjs-editor-new-alt-text-textarea =
 # This text refers to the alt text box above this description. It offers a definition of alt text.
 pdfjs-editor-new-alt-text-description = תיאור קצר לאנשים שאינם יכולים לראות את התמונה או כאשר התמונה אינה נטענת.
 # This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
-pdfjs-editor-new-alt-text-disclaimer = טקסט חלופי זה נוצר באופן אוטומטי.
+pdfjs-editor-new-alt-text-disclaimer1 = טקסט חלופי זה נוצר באופן אוטומטי ועשוי להיות לא מדויק.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = מידע נוסף
 pdfjs-editor-new-alt-text-create-automatically-button-label = יצירת טקסט חלופי באופן אוטומטי
 pdfjs-editor-new-alt-text-not-now-button = לא כעת
diff --git a/l10n/ia/viewer.ftl b/l10n/ia/viewer.ftl
index 1ab4935e5fc21..e466114b72b0d 100644
--- a/l10n/ia/viewer.ftl
+++ b/l10n/ia/viewer.ftl
@@ -396,13 +396,58 @@ pdfjs-editor-highlight-show-all-button =
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Rediger texto alternative (description del imagine)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Adder texto alternative (description del imagine)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Scribe tu description ci…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Breve description pro personas qui non pote vider le imagine o quando le imagine non se carga.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Iste texto alternative ha essite create automaticamente e pote esser inexacte.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Iste texto alternative ha essite create automaticamente.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Pro saper plus
+pdfjs-editor-new-alt-text-create-automatically-button-label = Crear texto alternative automaticamente
 pdfjs-editor-new-alt-text-not-now-button = Non ora
+pdfjs-editor-new-alt-text-error-title = Impossibile crear texto alternative automaticamente
+pdfjs-editor-new-alt-text-error-description = Scribe tu proprie texto alternative o retenta plus tarde.
 pdfjs-editor-new-alt-text-error-close-button = Clauder
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Discargante modello de intelligentia artificial  del texto alternative ({ $downloadedSize } de { $totalSize } MB)
+    .aria-valuetext = Discargante modello de intelligentia artificial  del texto alternative ({ $downloadedSize } de { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Texto alternative addite
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Texto alternative mancante
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Revider texto alternative
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Automaticamente create: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Parametros del texto alternative del imagine
+pdfjs-image-alt-text-settings-button-label = Parametros del texto alternative del imagine
+pdfjs-editor-alt-text-settings-dialog-label = Parametros del texto alternative del imagine
+pdfjs-editor-alt-text-settings-automatic-title = Texto alternative automatic
+pdfjs-editor-alt-text-settings-create-model-button-label = Crear texto alternative automaticamente
+pdfjs-editor-alt-text-settings-create-model-description = Suggere descriptiones pro adjutar le personas qui non pote vider le imagine o quando le imagine non carga.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Modello de intelligentia artificial del texto alternative ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Flue localmente sur tu apparato assi tu datos remane private. Necessari pro texto alternative automatic.
 pdfjs-editor-alt-text-settings-delete-model-button = Deler
 pdfjs-editor-alt-text-settings-download-model-button = Discargar
 pdfjs-editor-alt-text-settings-downloading-model-button = Discargante…
+pdfjs-editor-alt-text-settings-editor-title = Rediger texto alternative
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Monstrar le redactor de texto alternative a pena on adde un imagine
+pdfjs-editor-alt-text-settings-show-dialog-description = Te adjuta a verifica que tote tu imagines ha un texto alternative.
 pdfjs-editor-alt-text-settings-close-button = Clauder
diff --git a/l10n/it/viewer.ftl b/l10n/it/viewer.ftl
index 15ea7c569dafc..6f128f3fba4d5 100644
--- a/l10n/it/viewer.ftl
+++ b/l10n/it/viewer.ftl
@@ -414,7 +414,6 @@ pdfjs-editor-new-alt-text-textarea =
 pdfjs-editor-new-alt-text-description = Breve descrizione per le persone che non possono vedere l’immagine, o mostrata quando l’immagine non si carica.
 
 # This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
-pdfjs-editor-new-alt-text-disclaimer = Questo testo alternativo è stato creato automaticamente.
 pdfjs-editor-new-alt-text-disclaimer1 = Questo testo alternativo è stato creato automaticamente e potrebbe non essere accurato.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Ulteriori informazioni
 
diff --git a/l10n/kk/viewer.ftl b/l10n/kk/viewer.ftl
index 406402b4ccaa5..ec38165b93a77 100644
--- a/l10n/kk/viewer.ftl
+++ b/l10n/kk/viewer.ftl
@@ -396,15 +396,58 @@ pdfjs-editor-highlight-show-all-button =
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Балама мәтінді өңдеу (сурет сипаттамасы)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Балама мәтінді қосу (сурет сипаттамасы)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Сипаттамаңызды осында жазыңыз…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Суретті көре алмайтын адамдар үшін немесе сурет жүктелмеген кезіне арналған қысқаша сипаттама.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Бұл балама мәтін автоматты түрде жасалды және дәлсіз болуы мүмкін.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Бұл балама мәтін автоматты түрде жасалды.
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Көбірек білу
 pdfjs-editor-new-alt-text-create-automatically-button-label = Балама мәтінді автоматты түрде жасау
 pdfjs-editor-new-alt-text-not-now-button = Қазір емес
 pdfjs-editor-new-alt-text-error-title = Балама мәтінді автоматты түрде жасау мүмкін болмады
 pdfjs-editor-new-alt-text-error-description = Өзіңіздің балама мәтініңізді жазыңыз немесе кейінірек қайталап көріңіз.
 pdfjs-editor-new-alt-text-error-close-button = Жабу
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Балама мәтін үшін ЖИ моделі жүктеп алынуда ({ $downloadedSize }/{ $totalSize } МБ)
+    .aria-valuetext = Балама мәтін үшін ЖИ моделі жүктеп алынуда ({ $downloadedSize }/{ $totalSize } МБ)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Балама мәтін қосылды
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Балама мәтін жоқ
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Балама мәтінге пікір қалдыру
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Автоматты түрде жасалды: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Суреттің балама мәтінінің баптаулары
+pdfjs-image-alt-text-settings-button-label = Суреттің балама мәтінінің баптаулары
+pdfjs-editor-alt-text-settings-dialog-label = Суреттің балама мәтінінің баптаулары
+pdfjs-editor-alt-text-settings-automatic-title = Автоматты балама мәтін
+pdfjs-editor-alt-text-settings-create-model-button-label = Балама мәтінді автоматты түрде жасау
+pdfjs-editor-alt-text-settings-create-model-description = Суретті көре алмайтын адамдар үшін немесе сурет жүктелмеген кезіне арналған сипаттамаларды ұсынады.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Баламалы мәтіннің ЖИ моделі ({ $totalSize } МБ)
+pdfjs-editor-alt-text-settings-ai-model-description = Деректеріңіз жеке болып қалуы үшін құрылғыңызда жергілікті түрде жұмыс істейді. Автоматты балама мәтін үшін қажет.
 pdfjs-editor-alt-text-settings-delete-model-button = Өшіру
 pdfjs-editor-alt-text-settings-download-model-button = Жүктеп алу
 pdfjs-editor-alt-text-settings-downloading-model-button = Жүктеліп алынуда…
+pdfjs-editor-alt-text-settings-editor-title = Баламалы мәтін редакторы
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Суретті қосқанда балама мәтін редакторын бірден көрсету
+pdfjs-editor-alt-text-settings-show-dialog-description = Барлық суреттерде балама мәтін бар екеніне көз жеткізуге көмектеседі.
+pdfjs-editor-alt-text-settings-close-button = Жабу
diff --git a/l10n/nn-NO/viewer.ftl b/l10n/nn-NO/viewer.ftl
index e9168fd7915c5..c6af675636453 100644
--- a/l10n/nn-NO/viewer.ftl
+++ b/l10n/nn-NO/viewer.ftl
@@ -396,6 +396,50 @@ pdfjs-editor-highlight-show-all-button =
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Rediger alternativ tekst (bildeskildring)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Legg til alternativ tekst (bildeskildring)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Skriv skildringa di her…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Kort skildring for personar som ikkje kan sjå bildet, eller når bildet ikkje lastar inn.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Denne alternative teksten vart oppretta automatisk, og kan vere unøyaktig.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Denne alternative teksten vart oppretta automatisk.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Les meir
+pdfjs-editor-new-alt-text-create-automatically-button-label = Opprett alternativ tekt automatisk
+pdfjs-editor-new-alt-text-not-now-button = Ikkje no
+pdfjs-editor-new-alt-text-error-title = Klarte ikkje å opprette alternativ tekst automatisk
+pdfjs-editor-new-alt-text-error-description = Skriv din eigen alternative tekst eller prøv igjen seinare.
+pdfjs-editor-new-alt-text-error-close-button = Lat att
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Alternativ tekst lagt til
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Manglande alternativ tekst
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Vurder alternativ tekst
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Oppretta automatisk: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Alternative tekst-innstillingar for bilde
+pdfjs-image-alt-text-settings-button-label = Alternative tekst-innstillingar for bilde
+pdfjs-editor-alt-text-settings-dialog-label = Alternative tekst-innstillingar for bilde
+pdfjs-editor-alt-text-settings-automatic-title = Automatisk alternativ tekst
+pdfjs-editor-alt-text-settings-create-model-button-label = Opprett alternativ tekt automatisk
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = AI-modell for alternativ tekst ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Køyrer lokalt på eininga di slik at dataa dine blir verande private. Påkravd for automatisk alternativ tekst.
+pdfjs-editor-alt-text-settings-delete-model-button = Slett
+pdfjs-editor-alt-text-settings-download-model-button = Last ned
+pdfjs-editor-alt-text-settings-downloading-model-button = Lastar ned…
+pdfjs-editor-alt-text-settings-editor-title = Alternativ tekst-redigerar
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Vis alternativ tekst-redigerar direkte når du legg til eit bilde
+pdfjs-editor-alt-text-settings-close-button = Lat att
diff --git a/l10n/pa-IN/viewer.ftl b/l10n/pa-IN/viewer.ftl
index eef67d354f204..6500b3441ba6b 100644
--- a/l10n/pa-IN/viewer.ftl
+++ b/l10n/pa-IN/viewer.ftl
@@ -298,8 +298,6 @@ pdfjs-editor-stamp-button-label = ਚਿੱਤਰ ਜੋੜੋ ਜਾਂ ਸੋ
 pdfjs-editor-highlight-button =
     .title = ਹਾਈਲਾਈਟ
 pdfjs-editor-highlight-button-label = ਹਾਈਲਾਈਟ
-pdfjs-highlight-floating-button =
-    .title = ਹਾਈਲਾਈਟ
 pdfjs-highlight-floating-button1 =
     .title = ਹਾਈਲਾਈਟ
     .aria-label = ਹਾਈਲਾਈਟ
@@ -394,3 +392,62 @@ pdfjs-editor-colorpicker-red =
 pdfjs-editor-highlight-show-all-button-label = ਸਭ ਵੇਖੋ
 pdfjs-editor-highlight-show-all-button =
     .title = ਸਭ ਵੇਖੋ
+
+## New alt-text dialog
+## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
+
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = ਬਦਲਵੀਂ ਲਿਖਤ (ਚਿੱਤਰ ਦਾ ਵਰਣਨ) ਨੂੰ ਸੋਧੋ
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = ਬਦਲਵੀਂ ਲਿਖਤ (ਚਿੱਤਰ ਦਾ ਵਰਣਨ) ਨੂੰ ਜੋੜੋ
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = …ਆਪਣਾ ਵਰਣਨਾ ਇੱਥੇ ਲਿਖੋ
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = ਲੋਕ, ਜੋ ਕਿ ਚਿੱਤਰ ਨਹੀਂ ਵੇਖ ਸਕਦੇ ਜਾਂ ਜਦ ਵੀ ਚਿੱਤਰਾਂ ਨੂੰ ਲੋਡ ਨਹੀਂ ਜਾ ਸਕਦਾ, ਉਸ ਲਈ ਛੋਟਾ ਵੇਰਵਾ ਦਿਓ।
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = ਇਹ ਬਦਲਵੀਂ ਲਿਖਤ ਆਪਣੇ-ਆਪ ਤਿਆਰ ਕੀਤੀ ਗਈ ਸੀ ਅਤੇ ਗਲਤ ਵੀ ਹੋ ਸਕਦੀ ਹੈ।
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = ਇਹ ਬਦਲਵੀ ਲਿਖਤ ਆਪਣੇ-ਆਪ ਤਿਆਰ ਕੀਤੀ ਗਈ ਸੀ।
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = ਹੋਰ ਜਾਣੋ
+pdfjs-editor-new-alt-text-create-automatically-button-label = ਬਲਦਵੀਂ ਲਿਖਤ ਆਪਣੇ-ਆਪ ਬਣਾਓ
+pdfjs-editor-new-alt-text-not-now-button = ਹੁਣੇ ਨਹੀਂ
+pdfjs-editor-new-alt-text-error-title = ਬਦਲਵੀਂ ਲਿਖਤ ਆਪਣੇ-ਆਪ ਬਣਾਈ ਨਹੀਂ ਜਾ ਸਕੀ
+pdfjs-editor-new-alt-text-error-description = ਆਪਣਾ ਖੁਦ ਦੀ ਬਦਲਵੀਂ ਲਿਖਤ ਲਿਖੋ ਜਾਂ ਫੇਰ ਕੋਸ਼ਿਸ਼ ਕਰੋ।
+pdfjs-editor-new-alt-text-error-close-button = ਬੰਦ ਕਰੋ
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = ਬਦਲਵਾਂ ਲਿਖਤ AI ਮਾਡਲ ਡਾਊਨਲੋਡ ਕੀਤਾ ਜਾ ਰਿਹਾ ਹੈ ({ $totalSize } MB ਵਿੱਚੋਂ { $downloadedSize })
+    .aria-valuetext = ਬਦਲਵਾਂ ਲਿਖਤ AI ਮਾਡਲ ਡਾਊਨਲੋਡ ਕੀਤਾ ਜਾ ਰਿਹਾ ਹੈ ({ $totalSize } MB ਵਿੱਚੋਂ { $downloadedSize })
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = ਬਦਲਵੀਂ ਲਿਖਤ ਜੋੜੀ
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = ਬਦਲਵਾਂ ਲਿਖਤ ਗੁੰਮ ਹੈ
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = ਬਦਲਵੀਂ ਲਿਖਤ ਦਾ ਰੀਵਿਊ ਕਰੋ
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = ਆਪਣੇ-ਆਪ ਬਣਾਇਆ: { $generatedAltText }
+
+## Image alt-text settings
+
+pdfjs-image-alt-text-settings-button =
+    .title = ਚਿੱਤਰ ਬਦਲਵੀਂ ਲਿਖਤ ਦੀਆਂ ਸੈਟਿੰਗਾਂ
+pdfjs-image-alt-text-settings-button-label = ਚਿੱਤਰ ਬਦਲਵੀਂ ਲਿਖਤ ਦੀਆਂ ਸੈਟਿੰਗਾਂ
+pdfjs-editor-alt-text-settings-dialog-label = ਚਿੱਤਰ ਬਦਲਵੀਂ ਲਿਖਤ ਦੀਆਂ ਸੈਟਿੰਗਾਂ
+pdfjs-editor-alt-text-settings-automatic-title = ਆਟੋਮਮੈਟਿਕ ਬਦਲਵੀਂ ਲਿਖਤ
+pdfjs-editor-alt-text-settings-create-model-button-label = ਬਲਦਵੀਂ ਲਿਖਤ ਆਪਣੇ-ਆਪ ਬਣਾਓ
+pdfjs-editor-alt-text-settings-create-model-description = ਚਿੱਤਰ ਨਾ ਵੇਖ ਸਕਣ ਵਾਲੇ ਲੋਕਾਂ ਦੀ ਮਦਦ ਜਾਂ ਜਦ ਵੀ ਚਿੱਤਰਾਂ ਨੂੰ ਲੋਡ ਨਹੀਂ ਜਾ ਸਕਦਾ, ਉਸ ਲਈ ਛੋਟਾ ਵੇਰਵਾ ਦਿਓ।
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = ਬਦਲਵੀ ਲਿਖਤ ਲਈ AI ਮਾਡਲ ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = ਤੁਹਾਡੇ ਡਿਵਾਈਸ ਉੱਤੇ ਲੋਕਲ ਹੀ ਚੱਲਦਾ ਹੋਣ ਕਰਕੇ ਤੁਹਾਡਾ ਡਾਟਾ ਪ੍ਰਾਈਵੇਟ ਹੀ ਰਹਿੰਦਾ ਹੈ। ਆਟੋਮੈਟਿਕ ਬਦਲਵੀਂ ਲਿਖਤ ਲਈ ਚਾਹੀਦਾ ਹੈ।
+pdfjs-editor-alt-text-settings-delete-model-button = ਹਟਾਓ
+pdfjs-editor-alt-text-settings-download-model-button = ਡਾਊਨਲੋਡ
+pdfjs-editor-alt-text-settings-downloading-model-button = …ਨੂੰ ਡਾਊਨਲੋਡ ਕੀਤਾ ਜਾ ਰਿਹਾ ਹੈ
+pdfjs-editor-alt-text-settings-editor-title = ਬਦਲਵੀਂ ਲਿਖਤ ਐਡੀਟਰ
+pdfjs-editor-alt-text-settings-show-dialog-button-label = ਜਦੋਂ ਵਿੱਚ ਚਿੱਤਰ ਜੋੜਿਆ ਜਾਵੇ ਤਾਂ ਫ਼ੌਰਨ ਬਦਲਵੀ ਲਿਖਤ ਸੰਪਾਦਕ ਵੇਖਾਓ
+pdfjs-editor-alt-text-settings-show-dialog-description = ਤੁਹਾਡੀ ਮਦਦ ਕਰਦਾ ਹੈ ਕਿ ਤੁਹਾਡੇ ਸਾਰੇ ਚਿੱਤਰਾਂ ਲਈ ਬਦਲਵੀਂ ਲਿਖਤ ਮੌਜੂਦ ਹੋਵੇ।
+pdfjs-editor-alt-text-settings-close-button = ਬੰਦ ਕਰੋ
diff --git a/l10n/pt-PT/viewer.ftl b/l10n/pt-PT/viewer.ftl
index 7fd8d37855ac7..09fbef84c39c2 100644
--- a/l10n/pt-PT/viewer.ftl
+++ b/l10n/pt-PT/viewer.ftl
@@ -51,12 +51,6 @@ pdfjs-download-button-label = Transferir
 pdfjs-bookmark-button =
     .title = Página atual (ver URL da página atual)
 pdfjs-bookmark-button-label = Pagina atual
-# Used in Firefox for Android.
-pdfjs-open-in-app-button =
-    .title = Abrir na aplicação
-# Used in Firefox for Android.
-# Length of the translation matters since we are in a mobile context, with limited screen estate.
-pdfjs-open-in-app-button-label = Abrir na aplicação
 
 ##  Secondary toolbar and context menu
 
@@ -304,8 +298,6 @@ pdfjs-editor-stamp-button-label = Adicionar ou editar imagens
 pdfjs-editor-highlight-button =
     .title = Destaque
 pdfjs-editor-highlight-button-label = Destaque
-pdfjs-highlight-floating-button =
-    .title = Destaque
 pdfjs-highlight-floating-button1 =
     .title = Realçar
     .aria-label = Realçar
@@ -400,3 +392,62 @@ pdfjs-editor-colorpicker-red =
 pdfjs-editor-highlight-show-all-button-label = Mostrar tudo
 pdfjs-editor-highlight-show-all-button =
     .title = Mostrar tudo
+
+## New alt-text dialog
+## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
+
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Editar texto alternativo (descrição da imagem)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Adicionar texto alternativo (descrição da imagem)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Escreva a sua descrição aqui…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Descrição curta para as pessoas que não podem visualizar a imagem ou quando a imagem não carrega.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Este texto alternativo foi criado automaticamente e pode ser impreciso.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = Este texto alternativo foi criado automaticamente.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Saber mais
+pdfjs-editor-new-alt-text-create-automatically-button-label = Criar texto alternativo automaticamente
+pdfjs-editor-new-alt-text-not-now-button = Agora não
+pdfjs-editor-new-alt-text-error-title = Não foi possível criar o texto alternativo automaticamente
+pdfjs-editor-new-alt-text-error-description = Escreva o seu próprio texto alternativo ou tente novamente mais tarde.
+pdfjs-editor-new-alt-text-error-close-button = Fechar
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = A transferir o modelo de IA de texto alternativo ({ $downloadedSize } de { $totalSize } MB)
+    .aria-valuetext = A transferir o modelo de IA de texto alternativo ({ $downloadedSize } de { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = Texto alternativo adicionado
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = Texto alternativo em falta
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = Rever texto alternativo
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Criado automaticamente: { $generatedAltText }
+
+## Image alt-text settings
+
+pdfjs-image-alt-text-settings-button =
+    .title = Definições de texto alternativo da imagem
+pdfjs-image-alt-text-settings-button-label = Definições de texto alternativo da imagem
+pdfjs-editor-alt-text-settings-dialog-label = Definições de texto alternativo das imagens
+pdfjs-editor-alt-text-settings-automatic-title = Texto alternativo automático
+pdfjs-editor-alt-text-settings-create-model-button-label = Criar texto alternativo automaticamente
+pdfjs-editor-alt-text-settings-create-model-description = Sugere descrições para ajudar as pessoas que não podem visualizar a imagem ou quando a imagem não carrega.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Modelo de IA de texto alternativo ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = É executado localmente no seu dispositivo para que os seus dados se mantenham privados. É necessário para o texto alternativo automático.
+pdfjs-editor-alt-text-settings-delete-model-button = Eliminar
+pdfjs-editor-alt-text-settings-download-model-button = Transferir
+pdfjs-editor-alt-text-settings-downloading-model-button = A transferir…
+pdfjs-editor-alt-text-settings-editor-title = Editor de texto alternativo
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Mostrar editor de texto alternativo imediatamente ao adicionar uma imagem
+pdfjs-editor-alt-text-settings-show-dialog-description = Ajuda a garantir que todas as suas imagens tenham um texto alternativo.
+pdfjs-editor-alt-text-settings-close-button = Fechar
diff --git a/l10n/skr/viewer.ftl b/l10n/skr/viewer.ftl
index 9cd71374cfec7..a150dff84437e 100644
--- a/l10n/skr/viewer.ftl
+++ b/l10n/skr/viewer.ftl
@@ -402,6 +402,11 @@ pdfjs-editor-new-alt-text-error-close-button = بند کرو
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = تصویر آلٹ عبارت ترتیباں
+pdfjs-image-alt-text-settings-button-label = تصویر آلٹ عبارت ترتیباں
+pdfjs-editor-alt-text-settings-dialog-label = تصویر آلٹ عبارت ترتیباں
+pdfjs-editor-alt-text-settings-automatic-title = خودکار آلٹ عبارت
 pdfjs-editor-alt-text-settings-delete-model-button = مٹاؤ
 pdfjs-editor-alt-text-settings-download-model-button = ڈاؤن لوڈ
 pdfjs-editor-alt-text-settings-downloading-model-button = ڈاؤن لوڈ تھیندا پئے …
diff --git a/l10n/zh-CN/viewer.ftl b/l10n/zh-CN/viewer.ftl
index 8c1c34fde8606..fc3162cb54444 100644
--- a/l10n/zh-CN/viewer.ftl
+++ b/l10n/zh-CN/viewer.ftl
@@ -388,13 +388,58 @@ pdfjs-editor-highlight-show-all-button =
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = 编辑替换文字（图像描述）
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = 添加替换文字（图像描述）
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = 请在此处撰写描述…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = 向无法看到或加载图像的用户提供的简短描述。
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = 此段替换文字为自动创建，有可能不准确。
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer = 此段替换文字为自动创建。
 pdfjs-editor-new-alt-text-disclaimer-learn-more-url = 详细了解
+pdfjs-editor-new-alt-text-create-automatically-button-label = 自动创建替换文字
 pdfjs-editor-new-alt-text-not-now-button = 暂时不要
+pdfjs-editor-new-alt-text-error-title = 无法自动创建替换文字
+pdfjs-editor-new-alt-text-error-description = 请自行撰写替换文字，或稍后再试。
 pdfjs-editor-new-alt-text-error-close-button = 关闭
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+#   $percent (Number) - the percentage of the downloaded size.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = 正在下载提供替换文字的 AI 模型（{ $downloadedSize }/{ $totalSize } MB）
+    .aria-valuetext = 正在下载提供替换文字的 AI 模型（{ $downloadedSize }/{ $totalSize } MB）
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button-label = 已添加替换文字
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button-label = 缺少替换文字
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button-label = 检查替换文字
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = [自动创建] { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = 图像替换文字设置
+pdfjs-image-alt-text-settings-button-label = 图像替换文字设置
+pdfjs-editor-alt-text-settings-dialog-label = 图像替换文字设置
+pdfjs-editor-alt-text-settings-automatic-title = 自动创建替换文字
+pdfjs-editor-alt-text-settings-create-model-button-label = 自动创建替换文字
+pdfjs-editor-alt-text-settings-create-model-description = 向无法看到或加载图像的用户提供描述。
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = 提供替换文字的 AI 模型（{ $totalSize } MB）
+pdfjs-editor-alt-text-settings-ai-model-description = 在您的设备本地运行，可使数据保持私密。自动创建替换文字需要使用此模型。
 pdfjs-editor-alt-text-settings-delete-model-button = 删除
 pdfjs-editor-alt-text-settings-download-model-button = 下载
 pdfjs-editor-alt-text-settings-downloading-model-button = 正在下载…
+pdfjs-editor-alt-text-settings-editor-title = 替换文字编辑器
+pdfjs-editor-alt-text-settings-show-dialog-button-label = 添加图像后立即显示替换文字编辑器
+pdfjs-editor-alt-text-settings-show-dialog-description = 帮助确保所有图像均拥有替换文字。
 pdfjs-editor-alt-text-settings-close-button = 关闭