diff --git a/i18n/gl.json b/i18n/gl.json
index 9cd1fcb2e..1ef167ae4 100644
--- a/i18n/gl.json
+++ b/i18n/gl.json
@@ -21,12 +21,19 @@
 	"multimediaviewer-permission-link": "ver os termos",
 	"multimediaviewer-permission-viewmore": "Ollar máis",
 	"multimediaviewer-about-mmv": "Acerca do visor de ficheiros multimedia",
-	"multimediaviewer-discuss-mmv": "Deixe un comentario",
+	"multimediaviewer-discuss-mmv": "Conversar sobre esta característica",
+	"multimediaviewer-help-mmv": "Axuda",
 	"multimediaviewer-geolocation": "Localización: $1",
 	"multimediaviewer-fileusage-count": "Empregada {{PLURAL:$1|nunha páxina|en $1 páxinas}}",
 	"multimediaviewer-fileusage-count-more": "Empregada en máis de $1 {{PLURAL:$1|páxinas}}",
 	"multimediaviewer-fileusage-link": "Ver todos os usos",
 	"multimediaviewer-fileusage-local-section": "Neste sitio",
 	"multimediaviewer-fileusage-global-section": "Noutros sitios",
-	"multimediaviewer-reuse-link": "Utilizar este ficheiro"
+	"multimediaviewer-reuse-link": "Utilizar este ficheiro",
+	"multimediaviewer-reuse-loading-placeholder": "Cargando…",
+	"multimediaviewer-share-tab": "Compartir",
+	"multimediaviewer-embed-tab": "Incorporar",
+	"multimediaviewer-download-tab": "Descargar",
+	"multimediaviewer-embed-wt": "Texto wiki",
+	"multimediaviewer-embed-html": "HTML"
 }
diff --git a/i18n/nn.json b/i18n/nn.json
new file mode 100644
index 000000000..7986d163b
--- /dev/null
+++ b/i18n/nn.json
@@ -0,0 +1,18 @@
+{
+	"@metadata": {
+		"authors": [
+			"Njardarlogar"
+		]
+	},
+	"multimediaviewer-desc-nil": "Inga skilding er tilgjengeleg.",
+	"multimediaviewer-datetime-uploaded": "Lasta opp",
+	"multimediaviewer-userpage-link": "{{GENDER:$2|Lasta opp}} av $1",
+	"multimediaviewer-about-mmv": "Om medieframsynaren",
+	"multimediaviewer-discuss-mmv": "Diskuter denne funksjonen",
+	"multimediaviewer-help-mmv": "Hjelp",
+	"multimediaviewer-fileusage-link": "Sjå all bruk",
+	"multimediaviewer-fileusage-local-section": "På denne nettstaden",
+	"multimediaviewer-fileusage-global-section": "På andre nettstader",
+	"multimediaviewer-reuse-link": "Bruk fila",
+	"multimediaviewer-description-page-popup-text": "Meir informasjon på $1"
+}
diff --git a/i18n/roa-tara.json b/i18n/roa-tara.json
index 82e9a973a..eca9d557a 100644
--- a/i18n/roa-tara.json
+++ b/i18n/roa-tara.json
@@ -4,6 +4,7 @@
 			"Joetaras"
 		]
 	},
+	"multimediaviewer-optin-pref": "Abbilite 'u <span class=\"plainlinks\">[https://www.mediawiki.org/wiki/Special:MyLanguage/Multimedia/About_Media_Viewer Media Viewer]</span>",
 	"multimediaviewer-license-pd": "Dominie pubbleche",
 	"multimediaviewer-geolocation": "Posizione: $1"
 }