diff --git a/_locales/ar/messages.json b/_locales/ar/messages.json
index de22e63c..a0086b79 100644
--- a/_locales/ar/messages.json
+++ b/_locales/ar/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "أخفق التحديث - استجاب الخادم بالرمز $code$.",
+		"message": "أخفق التحديث - استجاب الخادم بالرمز $code$",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/cs/messages.json b/_locales/cs/messages.json
index 37e7f72b..2c00ca63 100644
--- a/_locales/cs/messages.json
+++ b/_locales/cs/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Aktualizace selhala - server opověděl kódem $code$.",
+		"message": "Aktualizace selhala: server opověděl kódem $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/de/messages.json b/_locales/de/messages.json
index 80d3833d..4560f6e7 100644
--- a/_locales/de/messages.json
+++ b/_locales/de/messages.json
@@ -432,7 +432,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Aktualisierung fehlgeschlagen - Server hat den Fehler $code$ ausgegeben.",
+		"message": "Aktualisierung fehlgeschlagen: Server hat den Fehler $code$ ausgegeben.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/el/messages.json b/_locales/el/messages.json
index 3cf88cf3..732d0630 100644
--- a/_locales/el/messages.json
+++ b/_locales/el/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Αποτυχία ενημέρωσης - ο διακομιστής ανταποκρίθηκε με κωδικό $code$.",
+		"message": "Αποτυχία ενημέρωσης: ο διακομιστής ανταποκρίθηκε με κωδικό $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index b1f3c3c0..efb7405b 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -601,7 +601,7 @@
     "description": "Note in the toolbar popup for file:// URLs"
   },
   "updateCheckFailBadResponseCode": {
-    "message": "Update failed - server responded with code $code$.",
+    "message": "Update failed: server responded with code $code$.",
     "description": "Text that displays when an update check failed because the response code indicates an error",
     "placeholders": {
       "code": {
diff --git a/_locales/fi/messages.json b/_locales/fi/messages.json
index dc4dd3c2..d6f4561b 100644
--- a/_locales/fi/messages.json
+++ b/_locales/fi/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Päivitys epäonnistui - palvelin vastasi koodilla $code$.",
+		"message": "Päivitys epäonnistui: palvelin vastasi koodilla $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/fr/messages.json b/_locales/fr/messages.json
index 66621f9b..676a4223 100644
--- a/_locales/fr/messages.json
+++ b/_locales/fr/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Échec de la mise à jour. Le serveur a renvoyé le $code$ $code$.",
+		"message": "Échec de la mise à jour: le serveur a renvoyé le code $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/it/messages.json b/_locales/it/messages.json
index 47ae2455..6d5d712f 100644
--- a/_locales/it/messages.json
+++ b/_locales/it/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Aggiornamento non riuscito - il server ha risposto con il codice $code$.",
+		"message": "Aggiornamento non riuscito: il server ha risposto con il codice $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/ja/messages.json b/_locales/ja/messages.json
index e46b5c52..bebef5af 100644
--- a/_locales/ja/messages.json
+++ b/_locales/ja/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "更新に失敗しました - サーバーが応答コード「$code$」を返しています。",
+		"message": "更新に失敗しました: サーバーが応答コード「$code$」を返しています。",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/nl/messages.json b/_locales/nl/messages.json
index 55174622..fd05af2a 100644
--- a/_locales/nl/messages.json
+++ b/_locales/nl/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Update mislukt - server gaf code $code$ als antwoord.",
+		"message": "Update mislukt: server gaf code $code$ als antwoord.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/pt_BR/messages.json b/_locales/pt_BR/messages.json
index ce30019c..aa744a88 100644
--- a/_locales/pt_BR/messages.json
+++ b/_locales/pt_BR/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "A atualização falhou - o  servidor respondeu com código $code$.",
+		"message": "A atualização falhou: o  servidor respondeu com código $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/ru/messages.json b/_locales/ru/messages.json
index aa32cf48..74cae21f 100644
--- a/_locales/ru/messages.json
+++ b/_locales/ru/messages.json
@@ -432,7 +432,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Ошибка обновления: сервер вернул код \"$code$\".",
+		"message": "Ошибка обновления: сервер вернул код $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/sr/messages.json b/_locales/sr/messages.json
index aff25f22..865ad8b0 100644
--- a/_locales/sr/messages.json
+++ b/_locales/sr/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Ажурирање није успело - сервер је одговорио кодом $code$.",
+		"message": "Ажурирање није успело: сервер је одговорио кодом $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/sv/messages.json b/_locales/sv/messages.json
index 16eb3ab7..67fdce80 100644
--- a/_locales/sv/messages.json
+++ b/_locales/sv/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Uppdateringen misslyckades - servern svarade med kod $code$.",
+		"message": "Uppdateringen misslyckades: servern svarade med kod $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/sv_SE/messages.json b/_locales/sv_SE/messages.json
index 6f48dc3f..74c8c4bc 100644
--- a/_locales/sv_SE/messages.json
+++ b/_locales/sv_SE/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Uppdateringen misslyckades - servern svarade med kod $code$.",
+		"message": "Uppdateringen misslyckades: servern svarade med kod $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/te/messages.json b/_locales/te/messages.json
index 8f64091e..50aba760 100644
--- a/_locales/te/messages.json
+++ b/_locales/te/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Update failed - server responded with code $code$.",
+		"message": "Update failed: server responded with code $code$.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/tr/messages.json b/_locales/tr/messages.json
index e47d8a48..090a35ed 100644
--- a/_locales/tr/messages.json
+++ b/_locales/tr/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "Güncellenemedi - sunucu yanıt olarak $code$ kodunu gönderdi.",
+		"message": "Güncellenemedi: sunucu yanıt olarak $code$ kodunu gönderdi.",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/zh/messages.json b/_locales/zh/messages.json
index 49712720..802ba478 100644
--- a/_locales/zh/messages.json
+++ b/_locales/zh/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "更新失败 - 服务器了返回代码 $code$.",
+		"message": "更新失败: 服务器了返回代码 $code$。",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/zh_CN/messages.json b/_locales/zh_CN/messages.json
index 6337a686..06767a2b 100644
--- a/_locales/zh_CN/messages.json
+++ b/_locales/zh_CN/messages.json
@@ -432,7 +432,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "更新失败 - 服务器响应代码为 $code$。",
+		"message": "更新失败: 服务器响应代码为 $code$。",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {
diff --git a/_locales/zh_TW/messages.json b/_locales/zh_TW/messages.json
index c26004be..e6c6616c 100644
--- a/_locales/zh_TW/messages.json
+++ b/_locales/zh_TW/messages.json
@@ -270,7 +270,7 @@
 		"description": "Link to open the manage page."
 	},
 	"updateCheckFailBadResponseCode": {
-		"message": "更新失敗 – 伺服器傳回代碼 $code$ 。",
+		"message": "更新失敗: 伺服器傳回代碼 $code$。",
 		"description": "Text that displays when an update check failed because the response code indicates an error",
 		"placeholders": {
 			"code": {