diff --git a/web/src/lib/settings/defaults.ts b/web/src/lib/settings/defaults.ts
index 54a96994..a082adf6 100644
--- a/web/src/lib/settings/defaults.ts
+++ b/web/src/lib/settings/defaults.ts
@@ -3,7 +3,7 @@ import { defaultLocale } from "$lib/i18n/translations";
 import type { CobaltSettings } from "$lib/types/settings";
 
 const defaultSettings: CobaltSettings = {
-    schemaVersion: 5,
+    schemaVersion: 6,
     advanced: {
         debug: false,
         useWebCodecs: false,
@@ -33,7 +33,9 @@ const defaultSettings: CobaltSettings = {
         tiktokFullAudio: false,
         convertGif: true,
         videoQuality: "1080",
+        subtitleLang: "none",
         youtubeVideoCodec: "h264",
+        youtubeVideoContainer: "auto",
         youtubeDubLang: "original",
         youtubeHLS: false,
         youtubeBetterAudio: false,
diff --git a/web/src/lib/types/settings.ts b/web/src/lib/types/settings.ts
index 37454183..1d184eec 100644
--- a/web/src/lib/types/settings.ts
+++ b/web/src/lib/types/settings.ts
@@ -3,15 +3,17 @@ import type { CobaltSettingsV2 } from "$lib/types/settings/v2";
 import type { CobaltSettingsV3 } from "$lib/types/settings/v3";
 import type { CobaltSettingsV4 } from "$lib/types/settings/v4";
 import type { CobaltSettingsV5 } from "$lib/types/settings/v5";
+import type { CobaltSettingsV6 } from "$lib/types/settings/v6";
 
 export * from "$lib/types/settings/v2";
 export * from "$lib/types/settings/v3";
 export * from "$lib/types/settings/v4";
 export * from "$lib/types/settings/v5";
+export * from "$lib/types/settings/v6";
 
-export type CobaltSettings = CobaltSettingsV5;
+export type CobaltSettings = CobaltSettingsV6;
 
-export type AnyCobaltSettings = CobaltSettingsV4 | CobaltSettingsV3 | CobaltSettingsV2 | CobaltSettings;
+export type AnyCobaltSettings = CobaltSettingsV5 | CobaltSettingsV4 | CobaltSettingsV3 | CobaltSettingsV2 | CobaltSettings;
 
 export type PartialSettings = RecursivePartial<CobaltSettings>;
 
diff --git a/web/src/lib/types/settings/v6.ts b/web/src/lib/types/settings/v6.ts
new file mode 100644
index 00000000..762d6a77
--- /dev/null
+++ b/web/src/lib/types/settings/v6.ts
@@ -0,0 +1,12 @@
+import type { SubtitleLang } from "$lib/settings/audio-sub-language";
+import type { CobaltSettingsV5 } from "$lib/types/settings/v5";
+
+export const youtubeVideoContainerOptions = ["auto", "mp4", "webm", "mkv"] as const;
+
+export type CobaltSettingsV6 = Omit<CobaltSettingsV5, 'schemaVersion' | 'save'> & {
+    schemaVersion: 6,
+    save: CobaltSettingsV5['save'] & {
+        youtubeVideoContainer: typeof youtubeVideoContainerOptions[number];
+        subtitleLang: SubtitleLang,
+    },
+};