diff --git a/l10n/eu/viewer.ftl b/l10n/eu/viewer.ftl
index 03f55debe..5096948d1 100644
--- a/l10n/eu/viewer.ftl
+++ b/l10n/eu/viewer.ftl
@@ -529,8 +529,8 @@ pdfjs-editor-add-signature-dialog-title = Gehitu sinadura
 ## Tab names
 
 # Type is a verb (you can type your name as signature)
-pdfjs-editor-add-signature-type-button = Mota
-    .title = Mota
+pdfjs-editor-add-signature-type-button = Idatzi
+    .title = Idatzi
 # Draw is a verb (you can draw your signature)
 pdfjs-editor-add-signature-draw-button = Marraztu
     .title = Marraztu
diff --git a/l10n/fur/viewer.ftl b/l10n/fur/viewer.ftl
index 1bca7d581..433ce77fd 100644
--- a/l10n/fur/viewer.ftl
+++ b/l10n/fur/viewer.ftl
@@ -316,6 +316,9 @@ pdfjs-highlight-floating-button1 =
     .title = Evidenzie
     .aria-label = Evidenzie
 pdfjs-highlight-floating-button-label = Evidenzie
+pdfjs-editor-signature-button =
+    .title = Zonte firme
+pdfjs-editor-signature-button-label = Zonte firme
 
 ## Remove button for the various kind of editor.
 
@@ -345,6 +348,9 @@ pdfjs-editor-stamp-add-image-button-label = Zonte imagjin
 pdfjs-editor-free-highlight-thickness-input = Spessôr
 pdfjs-editor-free-highlight-thickness-title =
     .title = Modifiche il spessôr de selezion pai elements che no son testuâi
+pdfjs-editor-signature-add-signature-button =
+    .title = Zonte gnove firme
+pdfjs-editor-signature-add-signature-button-label = Zonte gnove firme
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = Editôr di test
@@ -570,12 +576,18 @@ pdfjs-editor-add-signature-error-close-button = Siere
 
 pdfjs-editor-add-signature-cancel-button = Anule
 pdfjs-editor-add-signature-add-button = Zonte
+pdfjs-editor-edit-signature-update-button = Inzorne
 
 ## Main menu for adding/removing signatures
 
+pdfjs-editor-delete-signature-button =
+    .title = Gjave firme
+pdfjs-editor-delete-signature-button-label = Gjave firme
 
 ## Editor toolbar
 
+pdfjs-editor-add-signature-edit-button-label = Modifiche descrizion
 
 ## Edit signature description dialog
 
+pdfjs-editor-edit-signature-dialog-title = Modifiche descrizion
diff --git a/l10n/fy-NL/viewer.ftl b/l10n/fy-NL/viewer.ftl
index 60679f590..e47b385b6 100644
--- a/l10n/fy-NL/viewer.ftl
+++ b/l10n/fy-NL/viewer.ftl
@@ -316,6 +316,9 @@ pdfjs-highlight-floating-button1 =
     .title = Markearje
     .aria-label = Markearje
 pdfjs-highlight-floating-button-label = Markearje
+pdfjs-editor-signature-button =
+    .title = Hantekening tafoegje
+pdfjs-editor-signature-button-label = Hantekening tafoegje
 
 ## Remove button for the various kind of editor.
 
@@ -345,6 +348,9 @@ pdfjs-editor-stamp-add-image-button-label = Ofbylding tafoegje
 pdfjs-editor-free-highlight-thickness-input = Tsjokte
 pdfjs-editor-free-highlight-thickness-title =
     .title = Tsjokte wizigje by aksintuearring fan oare items as tekst
+pdfjs-editor-signature-add-signature-button =
+    .title = Nije hantekening tafoegje
+pdfjs-editor-signature-add-signature-button-label = Nije hantekening tafoegje
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = Tekstbewurker
@@ -570,12 +576,17 @@ pdfjs-editor-add-signature-error-close-button = Slute
 
 pdfjs-editor-add-signature-cancel-button = Annulearje
 pdfjs-editor-add-signature-add-button = Tafoegje
+pdfjs-editor-edit-signature-update-button = Bywurkje
 
 ## Main menu for adding/removing signatures
 
+pdfjs-editor-delete-signature-button =
+    .title = Hantekening fuortsmite
+pdfjs-editor-delete-signature-button-label = Hantekening fuortsmite
 
 ## Editor toolbar
 
+pdfjs-editor-add-signature-edit-button-label = Beskriuwing bewurkje
 
 ## Edit signature description dialog
 
diff --git a/l10n/gn/viewer.ftl b/l10n/gn/viewer.ftl
index 19e14f3fb..4fc933215 100644
--- a/l10n/gn/viewer.ftl
+++ b/l10n/gn/viewer.ftl
@@ -566,6 +566,9 @@ pdfjs-editor-add-signature-clear-button-label = Emboguete teraguapy
 pdfjs-editor-add-signature-clear-button =
     .title = Emboguete teraguapy
 pdfjs-editor-add-signature-save-checkbox = Eñongatu teraguapy
+pdfjs-editor-add-signature-save-warning-message = Ehupytýma 5 mboheraguapy ñongatupyre. Embogue peteĩ eñongatukuaa jey hag̃ua.
+pdfjs-editor-add-signature-image-upload-error-title = Ndaikatúi ojehupi pe ta’ãnga
+pdfjs-editor-add-signature-image-upload-error-description = Ehechajey ne ñanduti oikópa térã aha’ã ambue ta’ãnga ndive.
 pdfjs-editor-add-signature-error-close-button = Mboty
 
 ## Dialog buttons
diff --git a/l10n/hy-AM/viewer.ftl b/l10n/hy-AM/viewer.ftl
index 605825b7a..3727bbbd4 100644
--- a/l10n/hy-AM/viewer.ftl
+++ b/l10n/hy-AM/viewer.ftl
@@ -39,6 +39,9 @@ pdfjs-open-file-button-label = Բացել
 pdfjs-print-button =
     .title = Տպել
 pdfjs-print-button-label = Տպել
+pdfjs-save-button =
+    .title = Պահպանել
+pdfjs-save-button-label = Պահպանել
 # Used in Firefox for Android as a label for the download button (“download” is a verb).
 # Length of the translation matters since we are in a mobile context, with limited screen estate.
 pdfjs-download-button-label = Ներբեռնել
@@ -256,6 +259,7 @@ pdfjs-free-text-default-content = Սկսել մուտքագրումը…
 
 ## Alt-text dialog
 
+pdfjs-editor-alt-text-save-button = Պահպանել
 
 ## Editor resizers
 ## This is used in an aria label to help to understand the role of the resizer.
diff --git a/l10n/tr/viewer.ftl b/l10n/tr/viewer.ftl
index baef8fee4..7365b30a5 100644
--- a/l10n/tr/viewer.ftl
+++ b/l10n/tr/viewer.ftl
@@ -525,6 +525,7 @@ pdfjs-editor-undo-bar-close-button-label = Kapat
 
 ## Add a signature dialog
 
+pdfjs-editor-add-signature-dialog-label = Bu pencereden PDF belgesine eklemek üzere imza oluşturabilirsiniz. Adınızı düzenleyebilir (adınız alt metin olarak da kullanılır) ve isterseniz ileride tekrar kullanmak üzere imzayı kaydedebilirsiniz.
 pdfjs-editor-add-signature-dialog-title = İmza ekle
 
 ## Tab names
diff --git a/l10n/zh-TW/viewer.ftl b/l10n/zh-TW/viewer.ftl
index 84f898311..d757f9f23 100644
--- a/l10n/zh-TW/viewer.ftl
+++ b/l10n/zh-TW/viewer.ftl
@@ -173,8 +173,8 @@ pdfjs-print-progress-message = 正在準備列印文件…
 #   $progress (Number) - percent value
 pdfjs-print-progress-percent = { $progress }%
 pdfjs-print-progress-close-button = 取消
-pdfjs-printing-not-supported = 警告: 此瀏覽器未完整支援列印功能。
-pdfjs-printing-not-ready = 警告: 此 PDF 未完成下載以供列印。
+pdfjs-printing-not-supported = 警告：此瀏覽器未完整支援列印功能。
+pdfjs-printing-not-ready = 警告：此 PDF 未完成下載以供列印。
 
 ## Tooltips and alt text for side panel toolbar buttons