diff --git a/l10n/el/viewer.ftl b/l10n/el/viewer.ftl
index d68da090b..25ee279ee 100644
--- a/l10n/el/viewer.ftl
+++ b/l10n/el/viewer.ftl
@@ -293,7 +293,7 @@ pdfjs-annotation-date-time-string = { DATETIME($dateObj, dateStyle: "short", tim
 ## Password
 
 pdfjs-password-label = Εισαγάγετε τον κωδικό πρόσβασης για να ανοίξετε αυτό το αρχείο PDF.
-pdfjs-password-invalid = Μη έγκυρος κωδικός πρόσβασης. Παρακαλώ δοκιμάστε ξανά.
+pdfjs-password-invalid = Μη έγκυρος κωδικός πρόσβασης. Δοκιμάστε ξανά.
 pdfjs-password-ok-button = OK
 pdfjs-password-cancel-button = Ακύρωση
 pdfjs-web-fonts-disabled = Οι γραμματοσειρές ιστού είναι ανενεργές: δεν είναι δυνατή η χρήση των ενσωματωμένων γραμματοσειρών PDF.
diff --git a/l10n/it/viewer.ftl b/l10n/it/viewer.ftl
index d384fae6b..4d5a3ebf9 100644
--- a/l10n/it/viewer.ftl
+++ b/l10n/it/viewer.ftl
@@ -320,6 +320,19 @@ pdfjs-editor-signature-button =
     .title = Aggiungi firma
 pdfjs-editor-signature-button-label = Aggiungi firma
 
+## Default editor aria labels
+
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = Modifica evidenziazioni
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = Modifica disegni
+pdfjs-editor-signature-editor =
+    .aria-label = Modifica firme
+pdfjs-editor-stamp-editor =
+    .aria-label = Modifica immagini
+
 ## Remove button for the various kind of editor.
 
 pdfjs-editor-remove-ink-button =
@@ -348,9 +361,16 @@ pdfjs-editor-stamp-add-image-button-label = Aggiungi immagine
 pdfjs-editor-free-highlight-thickness-input = Spessore
 pdfjs-editor-free-highlight-thickness-title =
     .title = Modifica lo spessore della selezione per elementi non testuali
+pdfjs-editor-add-signature-container =
+    .aria-label = Controlli firma e firme salvate
 pdfjs-editor-signature-add-signature-button =
     .title = Aggiungi nuova firma
 pdfjs-editor-signature-add-signature-button-label = Aggiungi nuova firma
+# Used on the button to use an already saved signature.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-add-saved-signature-button =
+    .title = Firma salvata: { $description }
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = Editor di testo
@@ -583,6 +603,9 @@ pdfjs-editor-edit-signature-update-button = Aggiorna
 pdfjs-editor-delete-signature-button =
     .title = Rimuovi firma
 pdfjs-editor-delete-signature-button-label = Rimuovi firma
+pdfjs-editor-delete-signature-button1 =
+    .title = Rimuovi firma salvata
+pdfjs-editor-delete-signature-button-label1 = Rimuovi firma salvata
 
 ## Editor toolbar
 
diff --git a/l10n/nb-NO/viewer.ftl b/l10n/nb-NO/viewer.ftl
index cea07da25..050349c3f 100644
--- a/l10n/nb-NO/viewer.ftl
+++ b/l10n/nb-NO/viewer.ftl
@@ -470,7 +470,7 @@ pdfjs-editor-new-alt-text-added-button =
 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 =
-    .aria-label = Mangler alt-tekst
+    .aria-label = Mangler alternativ tekst
 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 =
diff --git a/l10n/nn-NO/viewer.ftl b/l10n/nn-NO/viewer.ftl
index e14f43286..fca1ecb58 100644
--- a/l10n/nn-NO/viewer.ftl
+++ b/l10n/nn-NO/viewer.ftl
@@ -532,6 +532,8 @@ pdfjs-editor-edit-signature-update-button = Oppdater
 
 ## Editor toolbar
 
+pdfjs-editor-add-signature-edit-button-label = Rediger skildring
 
 ## Edit signature description dialog
 
+pdfjs-editor-edit-signature-dialog-title = Rediger skildring