diff --git a/_locales/bg/messages.json b/_locales/bg/messages.json
index 658fe87b..1a56a8f1 100644
--- a/_locales/bg/messages.json
+++ b/_locales/bg/messages.json
@@ -183,10 +183,6 @@
 		"message": "Адреси, съвпадащи с регулярен израз",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "Включва писането на специфични за 'iframe' стилове като 'html[stylus-iframe] h1 { display:none }'",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "с обновен код",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
diff --git a/_locales/cs/messages.json b/_locales/cs/messages.json
index af2b87bc..14951fae 100644
--- a/_locales/cs/messages.json
+++ b/_locales/cs/messages.json
@@ -255,10 +255,6 @@
 		"message": "URL adresy odpovídající reg. výrazu",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "Povolení speciální iframe CSS syntaxe jako např. „html[stylus-iframe] h1 { display:none }“",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "kód aktualizován",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
diff --git a/_locales/de/messages.json b/_locales/de/messages.json
index 7b138d1a..7a65f63a 100644
--- a/_locales/de/messages.json
+++ b/_locales/de/messages.json
@@ -260,7 +260,7 @@
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
 	"optionsAdvancedExposeIframesNote": {
-		"message": "Aktiviert die iFrame-spezifische CSS Auszeichnung wie \"html[stylus-iframe] h1 { display:none; }\"",
+		"message": "Style wirkt sich auch auf iframes der anvisierten Domain aus.\nIframe-spezifisches CSS ist dann möglich wie folgt:\nhtml[stylus-iframe$=\"twitter.com\"] h1 { display:none }",
 		"description": ""
 	},
 	"importReportLegendUpdatedCode": {
diff --git a/_locales/es/messages.json b/_locales/es/messages.json
index 7462c335..98f821fb 100644
--- a/_locales/es/messages.json
+++ b/_locales/es/messages.json
@@ -268,7 +268,7 @@
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
 	"optionsAdvancedExposeIframesNote": {
-		"message": "Activa la escritura de CSS específico-para-iframe como «html[stylus-iframe] h1 { display:none }»",
+		"message": "Expone el dominio del sitio principal en cada iframe.\nHabilita la escritura de CSS específico-de-iframe como este:\nhtml[stylus-iframe$=\"twitter.com\"] h1 { display:none }",
 		"description": ""
 	},
 	"importReportLegendUpdatedCode": {
diff --git a/_locales/et/messages.json b/_locales/et/messages.json
index d166b5c8..362e91f3 100644
--- a/_locales/et/messages.json
+++ b/_locales/et/messages.json
@@ -251,10 +251,6 @@
 		"message": "Regulaaravaldisele vastavad URLid",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "Lubab iframe'i-põhise CSS-koodi kirjutamise, nagu \"html[stylus-iframe] h1 { display:none }\"",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "uuendatud kood",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
diff --git a/_locales/hu/messages.json b/_locales/hu/messages.json
index e03739d5..180f50cf 100644
--- a/_locales/hu/messages.json
+++ b/_locales/hu/messages.json
@@ -239,10 +239,6 @@
 		"message": "Reguláris kifejezésekre (regexp) illeszkedő URL-ek",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "Engedélyezi az olyan iframe-specifikus CSS írását, mint a „html[stylus-iframe] h1 { display:none }”",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "frissített kód",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
diff --git a/_locales/it/messages.json b/_locales/it/messages.json
index 0170ad61..7953110f 100644
--- a/_locales/it/messages.json
+++ b/_locales/it/messages.json
@@ -15,18 +15,10 @@
 		"message": "Esporta stili",
 		"description": ""
 	},
-	"optionsUpdateInterval": {
-		"message": "Controlla e installa automaticamente tutti gli aggiornamenti stili disponibili (in ore), per disattivare, imposta a 0",
-		"description": ""
-	},
 	"exportLabel": {
 		"message": "Esporta",
 		"description": "Label for the button to export a style ('edit' page) or all styles ('manage' page)"
 	},
-	"installButton": {
-		"message": "Installa",
-		"description": "Label for install button"
-	},
 	"linterJSONError": {
 		"message": "Formato JSON non valido",
 		"description": "Setting linter config with invalid JSON"
@@ -601,10 +593,6 @@
 		"message": "Larghezza popup (in pixel)",
 		"description": ""
 	},
-	"installButtonReinstall": {
-		"message": "Reinstalla",
-		"description": "Label for reinstall button"
-	},
 	"appliesLineWidgetWarning": {
 		"message": "Non funziona con CSS minificato",
 		"description": "A warning that applies-to information won't show properly with minified CSS"
@@ -650,10 +638,6 @@
 		"message": "Scrivi nuovo stile",
 		"description": "Label for the button to go to the add style page"
 	},
-	"installButtonUpdate": {
-		"message": "Aggiorna",
-		"description": "Label for update button"
-	},
 	"manageOnlyEnabled": {
 		"message": "Solo stili attivati",
 		"description": "Checkbox to show only enabled styles"
@@ -662,10 +646,6 @@
 		"message": "Modifica",
 		"description": "Label for the button to go to the edit style page"
 	},
-	"installButtonInstalled": {
-		"message": "Installato",
-		"description": "Text displayed when the style is successfully installed"
-	},
 	"author": {
 		"message": "Autore",
 		"description": "Label for the style author"
diff --git a/_locales/ja/messages.json b/_locales/ja/messages.json
index 98e2dc3e..fc7a3180 100644
--- a/_locales/ja/messages.json
+++ b/_locales/ja/messages.json
@@ -160,7 +160,7 @@
 		"description": "Used in various lists/options to indicate that something is enabled"
 	},
 	"previewTooltip": {
-		"message": "変更を保存しないで一時的に適用します。\n変更を確定する場合は、スタイルを保存してください。",
+		"message": "変更を保存しないで一時的に適用します。\n変更を確定する場合には、スタイルを保存してください。",
 		"description": "Tooltip for the checkbox in style editor to enable live preview while editing."
 	},
 	"manageFaviconsGray": {
@@ -264,7 +264,7 @@
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
 	"optionsAdvancedExposeIframesNote": {
-		"message": "' html[stylus-iframe] h1 { display:none } ' のようにiframe用のCSSを書くことができるようになります。",
+		"message": "各iframeにトップサイトドメインを公開します。\n次のようにiframe用のCSSを書くことができるようになります:\nhtml[stylus-iframe$=\"twitter.com\"] h1 { display:none }",
 		"description": ""
 	},
 	"importReportLegendUpdatedCode": {
diff --git a/_locales/pl/messages.json b/_locales/pl/messages.json
index 652a5ded..82f990b9 100644
--- a/_locales/pl/messages.json
+++ b/_locales/pl/messages.json
@@ -264,7 +264,7 @@
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
 	"optionsAdvancedExposeIframesNote": {
-		"message": "Umożliwia pisanie CSS w stylu ramek pływających 'html[stylus-iframe] h1 { display:none }'",
+		"message": "Odsłania domenę najwyższego poziomu w każdym elemencie iframe.\nWłącza CSS specyficzny dla iframe jak to:\nhtml[stylus-iframe$=\"twitter.com\"] h1 { display:none }",
 		"description": ""
 	},
 	"importReportLegendUpdatedCode": {
diff --git a/_locales/pt_PT/messages.json b/_locales/pt_PT/messages.json
index b994487d..a3fd3ac5 100644
--- a/_locales/pt_PT/messages.json
+++ b/_locales/pt_PT/messages.json
@@ -19,10 +19,6 @@
 		"message": "Exportar estilos",
 		"description": ""
 	},
-	"optionsUpdateInterval": {
-		"message": "Verificar automaticamente e instalar todos as atualizações para estilos do utilizador [userstyles] disponíveis (em horas), para desativar, estabelce a 0",
-		"description": ""
-	},
 	"exportLabel": {
 		"message": "Exportar",
 		"description": "Label for the button to export a style ('edit' page) or all styles ('manage' page)"
@@ -171,10 +167,6 @@
 		"message": "URLs a combinar com o regexp",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "Permite escrever CSS específico a iframe como 'html[stylus-iframe] h1 { display:none }'",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "atualizar código",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
@@ -660,4 +652,4 @@
 		"message": "Redesenha a web com o Stylus, um gerenciador dos estilos do utilizador [user styles]. O Stylus permite-te instalar facilmente temas e skins em muitos sites populares.",
 		"description": "Extension description"
 	}
-}
\ No newline at end of file
+}
diff --git a/_locales/ro/messages.json b/_locales/ro/messages.json
index 904b74bd..c5b40d53 100644
--- a/_locales/ro/messages.json
+++ b/_locales/ro/messages.json
@@ -239,10 +239,6 @@
 		"message": "URLs găsite cu regexp",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "Permiteți scrierea de iframe-specific CSS precum 'html[stylus-iframe] h1 { display:none }'",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "cod updatat",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
diff --git a/_locales/ru/messages.json b/_locales/ru/messages.json
index b73024c3..c30ea6fc 100644
--- a/_locales/ru/messages.json
+++ b/_locales/ru/messages.json
@@ -268,7 +268,7 @@
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
 	"optionsAdvancedExposeIframesNote": {
-		"message": "Позволяет писать CSS, работающий только внутри iframe, например: html[stylus-iframe] h1 { display:none }",
+		"message": "Делает адрес главного сайта известным во всех iframe.\nПозволяет писать CSS для iframe, например, так:\nhtml[stylus-iframe$=\"twitter.com\"] h1 { display:none }",
 		"description": ""
 	},
 	"importReportLegendUpdatedCode": {
diff --git a/_locales/zh_CN/messages.json b/_locales/zh_CN/messages.json
index ee59a165..73facfa0 100644
--- a/_locales/zh_CN/messages.json
+++ b/_locales/zh_CN/messages.json
@@ -263,10 +263,6 @@
 		"message": "与该正则表达式匹配的网址",
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
-	"optionsAdvancedExposeIframesNote": {
-		"message": "在开发者工具中，找到 Stylus 特定插入的框架代码，以便调用，例如：“html[stylus-iframe] h1 { display:none }”",
-		"description": ""
-	},
 	"importReportLegendUpdatedCode": {
 		"message": "代码已更新",
 		"description": "Text after the number of styles with updated code (meta info is unchanged) in the report shown after importing styles"
diff --git a/_locales/zh_TW/messages.json b/_locales/zh_TW/messages.json
index 87107054..9e9be781 100644
--- a/_locales/zh_TW/messages.json
+++ b/_locales/zh_TW/messages.json
@@ -268,7 +268,7 @@
 		"description": "Option to make the style apply to the entered string as a regular expression"
 	},
 	"optionsAdvancedExposeIframesNote": {
-		"message": "啟用寫入特定 iframe 的 CSS，如 'html[stylus-iframe] h1 { display:none }'",
+		"message": "公開每個 iframe 中的頂級頁面網域。\n啟用編寫特別用於 iframe 的 CSS，如這個：\nhtml[stylus-iframe$=\"twitter.com\"] h1 { display:none }",
 		"description": ""
 	},
 	"importReportLegendUpdatedCode": {