diff --git a/l10n/be/viewer.properties b/l10n/be/viewer.properties
index 2b6478f44..bf00ca134 100644
--- a/l10n/be/viewer.properties
+++ b/l10n/be/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Адкрыць файл
 open_file_label=Адкрыць
 print.title=Друкаваць
 print_label=Друкаваць
-
 save.title=Захаваць
 save_label=Захаваць
 bookmark1.title=Дзейная старонка (паглядзець URL-адрас з дзейнай старонкі)
 bookmark1_label=Цяперашняя старонка
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Адкрыць у праграме
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Адкрыць у праграме
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Здарылася памылка ў часе загрузкі PD
 invalid_file_error=Няспраўны або пашкоджаны файл PDF.
 missing_file_error=Адсутны файл PDF.
 unexpected_response_error=Нечаканы адказ сервера.
-
 rendering_error=Здарылася памылка падчас адлюстравання старонкі.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Тэкст
 editor_ink2.title=Маляваць
 editor_ink2_label=Маляваць
 
+editor_stamp.title=Дадаць выяву
+editor_stamp_label=Дадаць выяву
+
 free_text2_default_content=Пачніце набор тэксту…
 
 # Editor Parameters
diff --git a/l10n/ca/viewer.properties b/l10n/ca/viewer.properties
index bb9c87d3b..a51aa44a4 100644
--- a/l10n/ca/viewer.properties
+++ b/l10n/ca/viewer.properties
@@ -41,9 +41,12 @@ print.title=Imprimeix
 print_label=Imprimeix
 save.title=Desa
 save_label=Desa
-
 bookmark1.title=Pàgina actual (mostra l'URL de la pàgina actual)
 bookmark1_label=Pàgina actual
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
+open_in_app.title=Obre en una aplicació
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
+open_in_app_label=Obre en una aplicació
 
 # Secondary toolbar and context menu
 tools.title=Eines
@@ -212,7 +215,6 @@ loading_error=S'ha produït un error en carregar el PDF.
 invalid_file_error=El fitxer PDF no és vàlid o està malmès.
 missing_file_error=Falta el fitxer PDF.
 unexpected_response_error=Resposta inesperada del servidor.
-
 rendering_error=S'ha produït un error mentre es renderitzava la pàgina.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
diff --git a/l10n/cs/viewer.properties b/l10n/cs/viewer.properties
index 6d427ff69..7e38db465 100644
--- a/l10n/cs/viewer.properties
+++ b/l10n/cs/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Otevře soubor
 open_file_label=Otevřít
 print.title=Vytiskne dokument
 print_label=Vytisknout
-
 save.title=Uložit
 save_label=Uložit
 bookmark1.title=Aktuální stránka (zobrazit URL od aktuální stránky)
 bookmark1_label=Aktuální stránka
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Otevřít v aplikaci
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Otevřít v aplikaci
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Při nahrávání PDF nastala chyba.
 invalid_file_error=Neplatný nebo chybný soubor PDF.
 missing_file_error=Chybí soubor PDF.
 unexpected_response_error=Neočekávaná odpověď serveru.
-
 rendering_error=Při vykreslování stránky nastala chyba.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Text
 editor_ink2.title=Kreslení
 editor_ink2_label=Kreslení
 
+editor_stamp.title=Přidat obrázek
+editor_stamp_label=Přidat obrázek
+
 free_text2_default_content=Začněte psát…
 
 # Editor Parameters
diff --git a/l10n/cy/viewer.properties b/l10n/cy/viewer.properties
index 8d1b6f29f..3e4ced6c7 100644
--- a/l10n/cy/viewer.properties
+++ b/l10n/cy/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Agor Ffeil
 open_file_label=Agor
 print.title=Argraffu
 print_label=Argraffu
-
 save.title=Cadw
 save_label=Cadw
 bookmark1.title=Tudalen Gyfredol (Gweld URL o'r Dudalen Gyfredol)
 bookmark1_label=Tudalen Gyfredol
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Agor yn yr ap
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Agor yn yr ap
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Digwyddodd gwall wrth lwytho'r PDF.
 invalid_file_error=Ffeil PDF annilys neu llwgr.
 missing_file_error=Ffeil PDF coll.
 unexpected_response_error=Ymateb annisgwyl gan y gweinydd.
-
 rendering_error=Digwyddodd gwall wrth adeiladu'r dudalen.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Testun
 editor_ink2.title=Lluniadu
 editor_ink2_label=Lluniadu
 
+editor_stamp.title=Ychwanegu delwedd
+editor_stamp_label=Ychwanegu delwedd
+
 free_text2_default_content=Cychwyn teipio…
 
 # Editor Parameters
diff --git a/l10n/de/viewer.properties b/l10n/de/viewer.properties
index 8b6a2d0d8..cf864506e 100644
--- a/l10n/de/viewer.properties
+++ b/l10n/de/viewer.properties
@@ -39,7 +39,6 @@ open_file.title=Datei öffnen
 open_file_label=Öffnen
 print.title=Drucken
 print_label=Drucken
-
 save.title=Speichern
 save_label=Speichern
 bookmark1.title=Aktuelle Seite (URL von aktueller Seite anzeigen)
@@ -216,7 +215,6 @@ loading_error=Beim Laden der PDF-Datei trat ein Fehler auf.
 invalid_file_error=Ungültige oder beschädigte PDF-Datei
 missing_file_error=Fehlende PDF-Datei
 unexpected_response_error=Unerwartete Antwort des Servers
-
 rendering_error=Beim Darstellen der Seite trat ein Fehler auf.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -243,6 +241,9 @@ editor_free_text2_label=Text
 editor_ink2.title=Zeichnen
 editor_ink2_label=Zeichnen
 
+editor_stamp.title=Ein Bild hinzufügen
+editor_stamp_label=Ein Bild hinzufügen
+
 free_text2_default_content=Schreiben beginnen…
 
 # Editor Parameters
diff --git a/l10n/dsb/viewer.properties b/l10n/dsb/viewer.properties
index 11c8582de..94e3e2a54 100644
--- a/l10n/dsb/viewer.properties
+++ b/l10n/dsb/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Dataju wócyniś
 open_file_label=Wócyniś
 print.title=Śišćaś
 print_label=Śišćaś
-
 save.title=Składowaś
 save_label=Składowaś
 bookmark1.title=Aktualny bok (URL z aktualnego boka pokazaś)
 bookmark1_label=Aktualny bok
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=W nałoženju wócyniś
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=W nałoženju wócyniś
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Pśi zacytowanju PDF jo zmólka nastała.
 invalid_file_error=Njepłaśiwa abo wobškóźona PDF-dataja.
 missing_file_error=Felujuca PDF-dataja.
 unexpected_response_error=Njewócakane serwerowe wótegrono.
-
 rendering_error=Pśi zwobraznjanju boka jo zmólka nastała.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Tekst
 editor_ink2.title=Kresliś
 editor_ink2_label=Kresliś
 
+editor_stamp.title=Wobraz pśidaś
+editor_stamp_label=Wobraz pśidaś
+
 free_text2_default_content=Zachopśo pisaś…
 
 # Editor Parameters
diff --git a/l10n/el/viewer.properties b/l10n/el/viewer.properties
index 6e6be45cb..3c670661c 100644
--- a/l10n/el/viewer.properties
+++ b/l10n/el/viewer.properties
@@ -39,7 +39,6 @@ open_file.title=Άνοιγμα αρχείου
 open_file_label=Άνοιγμα
 print.title=Εκτύπωση
 print_label=Εκτύπωση
-
 save.title=Αποθήκευση
 save_label=Αποθήκευση
 bookmark1.title=Τρέχουσα σελίδα (Προβολή URL από τρέχουσα σελίδα)
@@ -216,7 +215,6 @@ loading_error=Προέκυψε σφάλμα κατά τη φόρτωση του
 invalid_file_error=Μη έγκυρο ή κατεστραμμένο αρχείο PDF.
 missing_file_error=Λείπει αρχείο PDF.
 unexpected_response_error=Μη αναμενόμενη απόκριση από το διακομιστή.
-
 rendering_error=Προέκυψε σφάλμα κατά την εμφάνιση της σελίδας.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -243,6 +241,9 @@ editor_free_text2_label=Κείμενο
 editor_ink2.title=Σχέδιο
 editor_ink2_label=Σχέδιο
 
+editor_stamp.title=Προσθήκη εικόνας
+editor_stamp_label=Προσθήκη εικόνας
+
 free_text2_default_content=Ξεκινήστε να πληκτρολογείτε…
 
 # Editor Parameters
diff --git a/l10n/en-GB/viewer.properties b/l10n/en-GB/viewer.properties
index 3005598a6..350b686c6 100644
--- a/l10n/en-GB/viewer.properties
+++ b/l10n/en-GB/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Open File
 open_file_label=Open
 print.title=Print
 print_label=Print
-
 save.title=Save
 save_label=Save
 bookmark1.title=Current Page (View URL from Current Page)
 bookmark1_label=Current Page
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Open in app
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Open in app
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=An error occurred while loading the PDF.
 invalid_file_error=Invalid or corrupted PDF file.
 missing_file_error=Missing PDF file.
 unexpected_response_error=Unexpected server response.
-
 rendering_error=An error occurred while rendering the page.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Text
 editor_ink2.title=Draw
 editor_ink2_label=Draw
 
+editor_stamp.title=Add an image
+editor_stamp_label=Add an image
+
 free_text2_default_content=Start typing…
 
 # Editor Parameters
diff --git a/l10n/es-AR/viewer.properties b/l10n/es-AR/viewer.properties
index d09ead059..cec91a3a1 100644
--- a/l10n/es-AR/viewer.properties
+++ b/l10n/es-AR/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Abrir archivo
 open_file_label=Abrir
 print.title=Imprimir
 print_label=Imprimir
-
 save.title=Guardar
 save_label=Guardar
 bookmark1.title=Página actual (Ver URL de la página actual)
 bookmark1_label=Página actual
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Abrir en la aplicación
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Abrir en la aplicación
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Ocurrió un error al cargar el PDF.
 invalid_file_error=Archivo PDF no válido o cocrrupto.
 missing_file_error=Archivo PDF faltante.
 unexpected_response_error=Respuesta del servidor inesperada.
-
 rendering_error=Ocurrió un error al dibujar la página.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Texto
 editor_ink2.title=Dibujar
 editor_ink2_label=Dibujar
 
+editor_stamp.title=Agregar una imagen
+editor_stamp_label=Agregar una imagen
+
 free_text2_default_content=Empezar a tipear…
 
 # Editor Parameters
diff --git a/l10n/es-CL/viewer.properties b/l10n/es-CL/viewer.properties
index 1e6378d14..e8e4b9b58 100644
--- a/l10n/es-CL/viewer.properties
+++ b/l10n/es-CL/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Abrir archivo
 open_file_label=Abrir
 print.title=Imprimir
 print_label=Imprimir
-
 save.title=Guardar
 save_label=Guardar
 bookmark1.title=Página actual (Ver URL de la página actual)
 bookmark1_label=Página actual
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Abrir en una aplicación
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Abrir en una aplicación
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Ocurrió un error al cargar el PDF.
 invalid_file_error=Archivo PDF inválido o corrupto.
 missing_file_error=Falta el archivo PDF.
 unexpected_response_error=Respuesta del servidor inesperada.
-
 rendering_error=Ocurrió un error al renderizar la página.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Texto
 editor_ink2.title=Dibujar
 editor_ink2_label=Dibujar
 
+editor_stamp.title=Añadir una imagen
+editor_stamp_label=Añadir una imagen
+
 free_text2_default_content=Empieza a escribir…
 
 # Editor Parameters
diff --git a/l10n/fr/viewer.properties b/l10n/fr/viewer.properties
index df555bd9f..fea58596e 100644
--- a/l10n/fr/viewer.properties
+++ b/l10n/fr/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Ouvrir le fichier
 open_file_label=Ouvrir le fichier
 print.title=Imprimer
 print_label=Imprimer
-
 save.title=Enregistrer
 save_label=Enregistrer
 bookmark1.title=Page courante (montrer l’adresse de la page courante)
 bookmark1_label=Page courante
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Ouvrir dans une application
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Ouvrir dans une application
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Une erreur s’est produite lors du chargement du fichier PDF.
 invalid_file_error=Fichier PDF invalide ou corrompu.
 missing_file_error=Fichier PDF manquant.
 unexpected_response_error=Réponse inattendue du serveur.
-
 rendering_error=Une erreur s’est produite lors de l’affichage de la page.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Texte
 editor_ink2.title=Dessiner
 editor_ink2_label=Dessiner
 
+editor_stamp.title=Ajouter une image
+editor_stamp_label=Ajouter une image
+
 free_text2_default_content=Commencer à écrire…
 
 # Editor Parameters
diff --git a/l10n/fur/viewer.properties b/l10n/fur/viewer.properties
index 55b8e3fe5..db6331c30 100644
--- a/l10n/fur/viewer.properties
+++ b/l10n/fur/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Vierç un file
 open_file_label=Vierç
 print.title=Stampe
 print_label=Stampe
-
 save.title=Salve
 save_label=Salve
 bookmark1.title=Pagjine corinte (mostre URL de pagjine atuâl)
 bookmark1_label=Pagjine corinte
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Vierç te aplicazion
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Vierç te aplicazion
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Al è vignût fûr un erôr intant che si cjariave il PDF.
 invalid_file_error=File PDF no valit o ruvinât.
 missing_file_error=Al mancje il file PDF.
 unexpected_response_error=Rispueste dal servidôr inspietade.
-
 rendering_error=Al è vignût fûr un erôr tal realizâ la visualizazion de pagjine.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Test
 editor_ink2.title=Dissen
 editor_ink2_label=Dissen
 
+editor_stamp.title=Zonte une imagjin
+editor_stamp_label=Zonte une imagjin
+
 free_text2_default_content=Scomence a scrivi…
 
 # Editor Parameters
diff --git a/l10n/fy-NL/viewer.properties b/l10n/fy-NL/viewer.properties
index e5f4cf3f4..3aed14b44 100644
--- a/l10n/fy-NL/viewer.properties
+++ b/l10n/fy-NL/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Bestân iepenje
 open_file_label=Iepenje
 print.title=Ofdrukke
 print_label=Ofdrukke
-
 save.title=Bewarje
 save_label=Bewarje
 bookmark1.title=Aktuele side (URL fan aktuele side besjen)
 bookmark1_label=Aktuele side
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Iepenje yn app
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Iepenje yn app
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Der is in flater bard by it laden fan de PDF.
 invalid_file_error=Ynfalide of korruptearre PDF-bestân.
 missing_file_error=PDF-bestân ûntbrekt.
 unexpected_response_error=Unferwacht serverantwurd.
-
 rendering_error=Der is in flater bard by it renderjen fan de side.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Tekst
 editor_ink2.title=Tekenje
 editor_ink2_label=Tekenje
 
+editor_stamp.title=Ofbylding tafoegje
+editor_stamp_label=Ofbylding tafoegje
+
 free_text2_default_content=Begjin mei typen…
 
 # Editor Parameters
diff --git a/l10n/gl/viewer.properties b/l10n/gl/viewer.properties
index 5b9221051..ddfd2030d 100644
--- a/l10n/gl/viewer.properties
+++ b/l10n/gl/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Abrir ficheiro
 open_file_label=Abrir
 print.title=Imprimir
 print_label=Imprimir
-
 save.title=Gardar
 save_label=Gardar
 bookmark1.title=Páxina actual (ver o URL da páxina actual)
 bookmark1_label=Páxina actual
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Abrir cunha aplicación
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Abrir cunha aplicación
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Produciuse un erro ao cargar o PDF.
 invalid_file_error=Ficheiro PDF danado ou non válido.
 missing_file_error=Falta o ficheiro PDF.
 unexpected_response_error=Resposta inesperada do servidor.
-
 rendering_error=Produciuse un erro ao representar a páxina.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Texto
 editor_ink2.title=Debuxo
 editor_ink2_label=Debuxo
 
+editor_stamp.title=Engadir unha imaxe
+editor_stamp_label=Engadir unha imaxe
+
 free_text2_default_content=Comezar a teclear…
 
 # Editor Parameters
diff --git a/l10n/gn/viewer.properties b/l10n/gn/viewer.properties
index 48dc5a788..0d383b3aa 100644
--- a/l10n/gn/viewer.properties
+++ b/l10n/gn/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Marandurendápe jeike
 open_file_label=Jeike
 print.title=Monguatia
 print_label=Monguatia
-
 save.title=Ñongatu
 save_label=Ñongatu
 bookmark1.title=Kuatiarogue ag̃agua (Ehecha URL kuatiarogue ag̃agua)
 bookmark1_label=Kuatiarogue Ag̃agua
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Embojuruja tembipuru’ípe
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Embojuruja tembipuru’ípe
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Oiko jejavy PDF oñemyeñyhẽnguévo.
 invalid_file_error=PDF marandurenda ndoikóiva térã ivaipyréva.
 missing_file_error=Ndaipóri PDF marandurenda
 unexpected_response_error=Mohendahavusu mbohovái ñeha’arõ’ỹva.
-
 rendering_error=Oiko jejavy ehechaukasévo kuatiarogue.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Moñe’ẽrã
 editor_ink2.title=Moha’ãnga
 editor_ink2_label=Moha’ãnga
 
+editor_stamp.title=Embojuaju ta’ãnga
+editor_stamp_label=Embojuaju ta’ãnga
+
 free_text2_default_content=Ehai ñepyrũ…
 
 # Editor Parameters
diff --git a/l10n/he/viewer.properties b/l10n/he/viewer.properties
index 654f49f7f..539091669 100644
--- a/l10n/he/viewer.properties
+++ b/l10n/he/viewer.properties
@@ -39,12 +39,12 @@ open_file.title=פתיחת קובץ
 open_file_label=פתיחה
 print.title=הדפסה
 print_label=הדפסה
-
 save.title=שמירה
 save_label=שמירה
 bookmark1_label=עמוד נוכחי
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=פתיחה ביישום
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=פתיחה ביישום
 
 # Secondary toolbar and context menu
@@ -214,7 +214,6 @@ loading_error=אירעה שגיאה בעת טעינת ה־PDF.
 invalid_file_error=קובץ PDF פגום או לא תקין.
 missing_file_error=קובץ PDF חסר.
 unexpected_response_error=תגובת שרת לא צפויה.
-
 rendering_error=אירעה שגיאה בעת עיבוד הדף.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -241,6 +240,9 @@ editor_free_text2_label=טקסט
 editor_ink2.title=ציור
 editor_ink2_label=ציור
 
+editor_stamp.title=הוספת תמונה
+editor_stamp_label=הוספת תמונה
+
 free_text2_default_content=להתחיל להקליד…
 
 # Editor Parameters
diff --git a/l10n/hsb/viewer.properties b/l10n/hsb/viewer.properties
index aa9cd7be6..41f648b3d 100644
--- a/l10n/hsb/viewer.properties
+++ b/l10n/hsb/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Dataju wočinić
 open_file_label=Wočinić
 print.title=Ćišćeć
 print_label=Ćišćeć
-
 save.title=Składować
 save_label=Składować
 bookmark1.title=Aktualna strona (URL z aktualneje strony pokazać)
 bookmark1_label=Aktualna strona
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=W nałoženju wočinić
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=W nałoženju wočinić
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Při začitowanju PDF je zmylk wustupił.
 invalid_file_error=Njepłaćiwa abo wobškodźena PDF-dataja.
 missing_file_error=Falowaca PDF-dataja.
 unexpected_response_error=Njewočakowana serwerowa wotmołwa.
-
 rendering_error=Při zwobraznjenju strony je zmylk wustupił.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Tekst
 editor_ink2.title=Rysować
 editor_ink2_label=Rysować
 
+editor_stamp.title=Wobraz přidać
+editor_stamp_label=Wobraz přidać
+
 free_text2_default_content=Započńće pisać…
 
 # Editor Parameters
diff --git a/l10n/is/viewer.properties b/l10n/is/viewer.properties
index 64ee923c3..b63457508 100644
--- a/l10n/is/viewer.properties
+++ b/l10n/is/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Opna skrá
 open_file_label=Opna
 print.title=Prenta
 print_label=Prenta
-
 save.title=Vista
 save_label=Vista
 bookmark1.title=Núverandi síða (Skoða vefslóð frá núverandi síðu)
 bookmark1_label=Núverandi síða
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Opna í smáforriti
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Opna í smáforriti
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Villa kom upp við að hlaða inn PDF.
 invalid_file_error=Ógild eða skemmd PDF skrá.
 missing_file_error=Vantar PDF skrá.
 unexpected_response_error=Óvænt svar frá netþjóni.
-
 rendering_error=Upp kom villa við að birta síðuna.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Texti
 editor_ink2.title=Teikna
 editor_ink2_label=Teikna
 
+editor_stamp.title=Bæta við mynd
+editor_stamp_label=Bæta við mynd
+
 free_text2_default_content=Byrjaðu að skrifa…
 
 # Editor Parameters
diff --git a/l10n/it/viewer.properties b/l10n/it/viewer.properties
index 42d9c2998..a60ca8684 100644
--- a/l10n/it/viewer.properties
+++ b/l10n/it/viewer.properties
@@ -207,3 +207,4 @@ editor_ink_opacity = Opacità
 editor_free_text2_aria_label = Editor di testo
 editor_ink2_aria_label = Editor disegni
 editor_ink_canvas_aria_label = Immagine creata dall’utente
+
diff --git a/l10n/kk/viewer.properties b/l10n/kk/viewer.properties
index 8edacb478..9f8ad1043 100644
--- a/l10n/kk/viewer.properties
+++ b/l10n/kk/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Файлды ашу
 open_file_label=Ашу
 print.title=Баспаға шығару
 print_label=Баспаға шығару
-
 save.title=Сақтау
 save_label=Сақтау
 bookmark1.title=Ағымдағы бет (Ағымдағы беттен URL адресін көру)
 bookmark1_label=Ағымдағы бет
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Қолданбада ашу
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Қолданбада ашу
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=PDF жүктеу кезінде қате кетті.
 invalid_file_error=Зақымдалған немесе қате PDF файл.
 missing_file_error=PDF файлы жоқ.
 unexpected_response_error=Сервердің күтпеген жауабы.
-
 rendering_error=Парақты өңдеу кезінде қате кетті.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Мәтін
 editor_ink2.title=Сурет салу
 editor_ink2_label=Сурет салу
 
+editor_stamp.title=Суретті қосу
+editor_stamp_label=Суретті қосу
+
 free_text2_default_content=Теруді бастау…
 
 # Editor Parameters
diff --git a/l10n/ko/viewer.properties b/l10n/ko/viewer.properties
index f5bd69007..add4201ef 100644
--- a/l10n/ko/viewer.properties
+++ b/l10n/ko/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=파일 열기
 open_file_label=열기
 print.title=인쇄
 print_label=인쇄
-
 save.title=저장
 save_label=저장
 bookmark1.title=현재 페이지 (현재 페이지에서 URL 보기)
 bookmark1_label=현재 페이지
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=앱에서 열기
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=앱에서 열기
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=PDF를 로드하는 동안 오류가 발생했습니다.
 invalid_file_error=잘못되었거나 손상된 PDF 파일.
 missing_file_error=PDF 파일 없음.
 unexpected_response_error=예기치 않은 서버 응답입니다.
-
 rendering_error=페이지를 렌더링하는 동안 오류가 발생했습니다.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=텍스트
 editor_ink2.title=그리기
 editor_ink2_label=그리기
 
+editor_stamp.title=이미지 추가
+editor_stamp_label=이미지 추가
+
 free_text2_default_content=입력하세요…
 
 # Editor Parameters
diff --git a/l10n/nb-NO/viewer.properties b/l10n/nb-NO/viewer.properties
index 47dc866eb..48e481a97 100644
--- a/l10n/nb-NO/viewer.properties
+++ b/l10n/nb-NO/viewer.properties
@@ -39,12 +39,10 @@ open_file.title=Åpne fil
 open_file_label=Åpne
 print.title=Skriv ut
 print_label=Skriv ut
-
 save.title=Lagre
 save_label=Lagre
 bookmark1.title=Gjeldende side (se URL fra gjeldende side)
 bookmark1_label=Gjeldende side
-
 # LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Åpne i app
 # LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
@@ -217,7 +215,6 @@ loading_error=En feil oppstod ved lasting av PDF.
 invalid_file_error=Ugyldig eller skadet PDF-fil.
 missing_file_error=Manglende PDF-fil.
 unexpected_response_error=Uventet serverrespons.
-
 rendering_error=En feil oppstod ved opptegning av siden.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -244,6 +241,9 @@ editor_free_text2_label=Tekst
 editor_ink2.title=Tegn
 editor_ink2_label=Tegn
 
+editor_stamp.title=Legg til et bilde
+editor_stamp_label=Legg til et bilde
+
 free_text2_default_content=Begynn å skrive…
 
 # Editor Parameters
diff --git a/l10n/nl/viewer.properties b/l10n/nl/viewer.properties
index 5a787f6d2..f14a1f610 100644
--- a/l10n/nl/viewer.properties
+++ b/l10n/nl/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Bestand openen
 open_file_label=Openen
 print.title=Afdrukken
 print_label=Afdrukken
-
 save.title=Opslaan
 save_label=Opslaan
 bookmark1.title=Huidige pagina (URL van huidige pagina bekijken)
 bookmark1_label=Huidige pagina
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Openen in app
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Openen in app
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Er is een fout opgetreden bij het laden van de PDF.
 invalid_file_error=Ongeldig of beschadigd PDF-bestand.
 missing_file_error=PDF-bestand ontbreekt. 
 unexpected_response_error=Onverwacht serverantwoord.
-
 rendering_error=Er is een fout opgetreden bij het weergeven van de pagina.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Tekst
 editor_ink2.title=Tekenen
 editor_ink2_label=Tekenen
 
+editor_stamp.title=Afbeelding toevoegen
+editor_stamp_label=Afbeelding toevoegen
+
 free_text2_default_content=Begin met typen…
 
 # Editor Parameters
diff --git a/l10n/pt-BR/viewer.properties b/l10n/pt-BR/viewer.properties
index c4d72d31c..a0451c459 100644
--- a/l10n/pt-BR/viewer.properties
+++ b/l10n/pt-BR/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Abrir arquivo
 open_file_label=Abrir
 print.title=Imprimir
 print_label=Imprimir
-
 save.title=Salvar
 save_label=Salvar
 bookmark1.title=Página atual (ver URL da página atual)
 bookmark1_label=Pagina atual
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Abrir em um aplicativo
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Abrir em um aplicativo
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Ocorreu um erro ao carregar o PDF.
 invalid_file_error=Arquivo PDF corrompido ou inválido.
 missing_file_error=Arquivo PDF ausente.
 unexpected_response_error=Resposta inesperada do servidor.
-
 rendering_error=Ocorreu um erro ao renderizar a página.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Texto
 editor_ink2.title=Desenho
 editor_ink2_label=Desenho
 
+editor_stamp.title=Adicionar uma imagem
+editor_stamp_label=Adicionar uma imagem
+
 free_text2_default_content=Comece digitando…
 
 # Editor Parameters
diff --git a/l10n/pt-PT/viewer.properties b/l10n/pt-PT/viewer.properties
index 93534b75c..7a717ce3b 100644
--- a/l10n/pt-PT/viewer.properties
+++ b/l10n/pt-PT/viewer.properties
@@ -39,12 +39,10 @@ open_file.title=Abrir ficheiro
 open_file_label=Abrir
 print.title=Imprimir
 print_label=Imprimir
-
 save.title=Guardar
 save_label=Guardar
 bookmark1.title=Página atual (ver URL da página atual)
 bookmark1_label=Pagina atual
-
 # LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Abrir na aplicação
 # LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
@@ -217,7 +215,6 @@ loading_error=Ocorreu um erro ao carregar o PDF.
 invalid_file_error=Ficheiro PDF inválido ou danificado.
 missing_file_error=Ficheiro PDF inexistente.
 unexpected_response_error=Resposta inesperada do servidor.
-
 rendering_error=Ocorreu um erro ao processar a página.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -244,6 +241,9 @@ editor_free_text2_label=Texto
 editor_ink2.title=Desenhar
 editor_ink2_label=Desenhar
 
+editor_stamp.title=Adicionar uma imagem
+editor_stamp_label=Adicionar uma imagem
+
 free_text2_default_content=Começar a digitar…
 
 # Editor Parameters
diff --git a/l10n/ru/viewer.properties b/l10n/ru/viewer.properties
index d3986f9ab..3acf683ff 100644
--- a/l10n/ru/viewer.properties
+++ b/l10n/ru/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Открыть файл
 open_file_label=Открыть
 print.title=Печать
 print_label=Печать
-
 save.title=Сохранить
 save_label=Сохранить
 bookmark1.title=Текущая страница (просмотр URL-адреса с текущей страницы)
 bookmark1_label=Текущая страница
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Открыть в приложении
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Открыть в программе
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=При загрузке PDF произошла ошибка.
 invalid_file_error=Некорректный или повреждённый PDF-файл.
 missing_file_error=PDF-файл отсутствует.
 unexpected_response_error=Неожиданный ответ сервера.
-
 rendering_error=При создании страницы произошла ошибка.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Текст
 editor_ink2.title=Рисовать
 editor_ink2_label=Рисовать
 
+editor_stamp.title=Добавить изображение
+editor_stamp_label=Добавить изображение
+
 free_text2_default_content=Начните вводить…
 
 # Editor Parameters
diff --git a/l10n/sat/viewer.properties b/l10n/sat/viewer.properties
index 5932a907a..b3dc2c0a6 100644
--- a/l10n/sat/viewer.properties
+++ b/l10n/sat/viewer.properties
@@ -39,7 +39,6 @@ open_file.title=ᱨᱮᱫ ᱡᱷᱤᱡᱽ ᱢᱮ
 open_file_label=ᱡᱷᱤᱡᱽ ᱢᱮ
 print.title=ᱪᱷᱟᱯᱟ
 print_label=ᱪᱷᱟᱯᱟ
-
 save.title=ᱥᱟᱺᱪᱟᱣ ᱢᱮ
 save_label=ᱥᱟᱺᱪᱟᱣ ᱢᱮ
 bookmark1.title=ᱱᱤᱛᱚᱜᱟᱜ ᱥᱟᱦᱴᱟ (ᱱᱤᱛᱚᱜᱟᱜ ᱥᱟᱦᱴᱟ ᱠᱷᱚᱱ URL ᱫᱮᱠᱷᱟᱣ ᱢᱮ)
@@ -216,7 +215,6 @@ loading_error=PDF ᱞᱟᱫᱮ ᱡᱚᱦᱚᱜ ᱢᱤᱫ ᱵᱷᱩᱞ ᱦᱩᱭ
 invalid_file_error=ᱵᱟᱝ ᱵᱟᱛᱟᱣ ᱟᱨᱵᱟᱝᱠᱷᱟᱱ ᱰᱤᱜᱟᱹᱣ PDF ᱨᱮᱫᱽ ᱾
 missing_file_error=ᱟᱫᱟᱜ PDF ᱨᱮᱫᱽ ᱾
 unexpected_response_error=ᱵᱟᱝᱵᱩᱡᱷ ᱥᱚᱨᱵᱷᱚᱨ ᱛᱮᱞᱟ ᱾
-
 rendering_error=ᱥᱟᱦᱴᱟ ᱮᱢ ᱡᱚᱦᱚᱠ ᱢᱤᱫ ᱵᱷᱩᱞ ᱦᱩᱭ ᱮᱱᱟ ᱾
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -243,6 +241,9 @@ editor_free_text2_label=ᱚᱞ
 editor_ink2.title=ᱛᱮᱭᱟᱨ
 editor_ink2_label=ᱛᱮᱭᱟᱨ
 
+editor_stamp.title=ᱢᱤᱫᱴᱟᱹᱝ ᱪᱤᱛᱟᱹᱨ ᱥᱮᱞᱮᱫ ᱢᱮ
+editor_stamp_label=ᱢᱤᱫᱴᱟᱹᱝ ᱪᱤᱛᱟᱹᱨ ᱥᱮᱞᱮᱫ ᱢᱮ
+
 free_text2_default_content=ᱚᱞ ᱮᱛᱦᱚᱵ ᱢᱮ …
 
 # Editor Parameters
diff --git a/l10n/si/viewer.properties b/l10n/si/viewer.properties
index 25bb45729..a865cf906 100644
--- a/l10n/si/viewer.properties
+++ b/l10n/si/viewer.properties
@@ -37,7 +37,6 @@ open_file.title=ගොනුව අරින්න
 open_file_label=අරින්න
 print.title=මුද්‍රණය
 print_label=මුද්‍රණය
-
 save.title=සුරකින්න
 save_label=සුරකින්න
 bookmark1_label=පවතින පිටුව
@@ -183,7 +182,6 @@ invalid_file_error=වලංගු නොවන හෝ හානිවූ පී
 missing_file_error=මඟහැරුණු පීඩීඑෆ් ගොනුවකි.
 unexpected_response_error=අනපේක්‍ෂිත සේවාදායක ප්‍රතිචාරයකි.
 
-
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
 # replaced by the modification date, and time, of the annotation.
 annotation_date_string={{date}}, {{time}}
@@ -199,13 +197,14 @@ password_cancel=අවලංගු
 
 printing_not_supported=අවවාදයයි: මෙම අතිරික්සුව මුද්‍රණය සඳහා හොඳින් සහාය නොදක්වයි.
 printing_not_ready=අවවාදයයි: මුද්‍රණයට පීඩීඑෆ් ගොනුව සම්පූර්ණයෙන් පූරණය වී නැත.
-web_fonts_disabled=වියමන අකුරු අබලයි: පීඩීඑෆ් වෙත කාවැද්දූ අකුරු භාවිතා කළ නොහැකිය.
+web_fonts_disabled=වියමන අකුරු අබලයි: පීඩීඑෆ් වෙත කාවැද්දූ රුවකුරු භාවිතා කළ නොහැකිය.
 
 # Editor
 editor_free_text2.title=පෙළ
 editor_free_text2_label=පෙළ
 
 
+
 # Editor Parameters
 editor_free_text_color=වර්ණය
 editor_free_text_size=තරම
diff --git a/l10n/sl/viewer.properties b/l10n/sl/viewer.properties
index af9c1c538..082b5fb02 100644
--- a/l10n/sl/viewer.properties
+++ b/l10n/sl/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Odpri datoteko
 open_file_label=Odpri
 print.title=Natisni
 print_label=Natisni
-
 save.title=Shrani
 save_label=Shrani
 bookmark1.title=Trenutna stran (prikaži URL, ki vodi do trenutne strani)
 bookmark1_label=Na trenutno stran
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Odpri v programu
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Odpri v programu
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Med nalaganjem datoteke PDF je prišlo do napake.
 invalid_file_error=Neveljavna ali pokvarjena datoteka PDF.
 missing_file_error=Ni datoteke PDF.
 unexpected_response_error=Nepričakovan odgovor strežnika.
-
 rendering_error=Med pripravljanjem strani je prišlo do napake!
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Besedilo
 editor_ink2.title=Riši
 editor_ink2_label=Riši
 
+editor_stamp.title=Dodaj sliko
+editor_stamp_label=Dodaj sliko
+
 free_text2_default_content=Začnite tipkati …
 
 # Editor Parameters
diff --git a/l10n/sv-SE/viewer.properties b/l10n/sv-SE/viewer.properties
index bce36d5b2..dc1b12420 100644
--- a/l10n/sv-SE/viewer.properties
+++ b/l10n/sv-SE/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Öppna fil
 open_file_label=Öppna
 print.title=Skriv ut
 print_label=Skriv ut
-
 save.title=Spara
 save_label=Spara
 bookmark1.title=Aktuell sida (Visa URL från aktuell sida)
 bookmark1_label=Aktuell sida
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Öppna i app
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Öppna i app
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Ett fel uppstod vid laddning av PDF-filen.
 invalid_file_error=Ogiltig eller korrupt PDF-fil.
 missing_file_error=Saknad PDF-fil.
 unexpected_response_error=Oväntat svar från servern.
-
 rendering_error=Ett fel uppstod vid visning av sidan.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Text
 editor_ink2.title=Rita
 editor_ink2_label=Rita
 
+editor_stamp.title=Lägg till en bild
+editor_stamp_label=Lägg till en bild
+
 free_text2_default_content=Börja skriva…
 
 # Editor Parameters
diff --git a/l10n/tg/viewer.properties b/l10n/tg/viewer.properties
index 7ab53f787..e4f75960e 100644
--- a/l10n/tg/viewer.properties
+++ b/l10n/tg/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Кушодани файл
 open_file_label=Кушодан
 print.title=Чоп кардан
 print_label=Чоп кардан
-
 save.title=Нигоҳ доштан
 save_label=Нигоҳ доштан
 bookmark1.title=Саҳифаи ҷорӣ (Дидани нишонии URL аз саҳифаи ҷорӣ)
 bookmark1_label=Саҳифаи ҷорӣ
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Кушодан дар барнома
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Кушодан дар барнома
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=Ҳангоми боркунии «PDF» хато ба миён о
 invalid_file_error=Файли «PDF» нодуруст ё вайроншуда мебошад.
 missing_file_error=Файли «PDF» ғоиб аст.
 unexpected_response_error=Ҷавоби ногаҳон аз сервер.
-
 rendering_error=Ҳангоми шаклсозии саҳифа хато ба миён омад.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Матн
 editor_ink2.title=Расмкашӣ
 editor_ink2_label=Расмкашӣ
 
+editor_stamp.title=Илова кардани тасвир
+editor_stamp_label=Илова кардани тасвир
+
 free_text2_default_content=Нависед…
 
 # Editor Parameters
diff --git a/l10n/tr/viewer.properties b/l10n/tr/viewer.properties
index e3a15873f..97f6ec544 100644
--- a/l10n/tr/viewer.properties
+++ b/l10n/tr/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=Dosya aç
 open_file_label=Aç
 print.title=Yazdır
 print_label=Yazdır
-
 save.title=Kaydet
 save_label=Kaydet
 bookmark1.title=Geçerli sayfa (geçerli sayfanın adresini görüntüle)
 bookmark1_label=Geçerli sayfa
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=Uygulamada aç
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=Uygulamada aç
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=PDF yüklenirken bir hata oluştu.
 invalid_file_error=Geçersiz veya bozulmuş PDF dosyası.
 missing_file_error=PDF dosyası eksik.
 unexpected_response_error=Beklenmeyen sunucu yanıtı.
-
 rendering_error=Sayfa yorumlanırken bir hata oluştu.
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=Metin
 editor_ink2.title=Çiz
 editor_ink2_label=Çiz
 
+editor_stamp.title=Resim ekle
+editor_stamp_label=Resim ekle
+
 free_text2_default_content=Yazmaya başlayın…
 
 # Editor Parameters
diff --git a/l10n/zh-CN/viewer.properties b/l10n/zh-CN/viewer.properties
index 16c110839..8fd022a64 100644
--- a/l10n/zh-CN/viewer.properties
+++ b/l10n/zh-CN/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=打开文件
 open_file_label=打开
 print.title=打印
 print_label=打印
-
 save.title=保存
 save_label=保存
 bookmark1.title=当前页面（在当前页面查看 URL）
 bookmark1_label=当前页面
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=在应用中打开
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=在应用中打开
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=加载 PDF 时发生错误。
 invalid_file_error=无效或损坏的 PDF 文件。
 missing_file_error=缺少 PDF 文件。
 unexpected_response_error=意外的服务器响应。
-
 rendering_error=渲染页面时发生错误。
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=文本
 editor_ink2.title=绘图
 editor_ink2_label=绘图
 
+editor_stamp.title=添加图像
+editor_stamp_label=添加图像
+
 free_text2_default_content=开始输入…
 
 # Editor Parameters
diff --git a/l10n/zh-TW/viewer.properties b/l10n/zh-TW/viewer.properties
index c0ee69de4..bd1984bb9 100644
--- a/l10n/zh-TW/viewer.properties
+++ b/l10n/zh-TW/viewer.properties
@@ -39,13 +39,13 @@ open_file.title=開啟檔案
 open_file_label=開啟
 print.title=列印
 print_label=列印
-
 save.title=儲存
 save_label=儲存
 bookmark1.title=目前頁面（含目前檢視頁面的網址）
 bookmark1_label=目前頁面
-
+# LOCALIZATION NOTE (open_in_app.title): This string is used in Firefox for Android.
 open_in_app.title=在應用程式中開啟
+# LOCALIZATION NOTE (open_in_app_label): This string is used in Firefox for Android. Length of the translation matters since we are in a mobile context, with limited screen estate.
 open_in_app_label=用程式開啟
 
 # Secondary toolbar and context menu
@@ -215,7 +215,6 @@ loading_error=載入 PDF 時發生錯誤。
 invalid_file_error=無效或毀損的 PDF 檔案。
 missing_file_error=找不到 PDF 檔案。
 unexpected_response_error=伺服器回應未預期的內容。
-
 rendering_error=描繪頁面時發生錯誤。
 
 # LOCALIZATION NOTE (annotation_date_string): "{{date}}" and "{{time}}" will be
@@ -242,6 +241,9 @@ editor_free_text2_label=文字
 editor_ink2.title=繪圖
 editor_ink2_label=繪圖
 
+editor_stamp.title=新增圖片
+editor_stamp_label=新增圖片
+
 free_text2_default_content=開始打字…
 
 # Editor Parameters