diff --git a/src/entrypoints/background/index.ts b/src/entrypoints/background/index.ts
index e76bf6f..f469316 100644
--- a/src/entrypoints/background/index.ts
+++ b/src/entrypoints/background/index.ts
@@ -1,30 +1,41 @@
-import { UrlReferer } from '@/lib/settings';
+import { getHost } from '@/lib/host';
+import { HostSettings, UrlReferer } from '@/lib/settings';
 
 export default defineBackground(() => {
 	browser.runtime.onMessage.addListener(async (message) => {
 		if (message.action == 'ff2mpv') {
 			await browser.runtime.sendNativeMessage('ff2mpv', { url: message.url });
 		}
-
-		// the following listener is only available in mv2
-		if (import.meta.env.MANIFEST_VERSION === 3) return;
-
-		browser.webRequest.onBeforeSendHeaders.addListener(
-			// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-			// @ts-ignore
-			async (details) => {
-				const referer = await UrlReferer.get(new URL(details.url).hostname);
-				if (!referer) return;
-
-				details.requestHeaders!.push({
-					name: 'Referer',
-					value: `https://${referer}/`
-				});
-
-				return { requestHeaders: details.requestHeaders };
-			},
-			{ urls: ['<all_urls>'], types: ['xmlhttprequest'] },
-			['blocking', 'requestHeaders']
-		);
 	});
+
+	// the following listener is only available in mv2
+	if (import.meta.env.MANIFEST_VERSION === 3) return;
+
+	browser.webRequest.onBeforeSendHeaders.addListener(
+		// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+		// @ts-ignore
+		async (details) => {
+			const referer = await UrlReferer.get(new URL(details.url).hostname);
+			if (!referer) return;
+
+			details.requestHeaders!.push({
+				name: 'Referer',
+				value: `https://${referer}/`
+			});
+
+			return { requestHeaders: details.requestHeaders };
+		},
+		{ urls: ['<all_urls>'], types: ['xmlhttprequest'] },
+		['blocking', 'requestHeaders']
+	);
+
+	browser.webRequest.onBeforeRedirect.addListener(
+		async (details) => {
+			const host = await getHost(new URL(details.url).hostname);
+			if (!host) return;
+
+			await HostSettings.addTemporaryHostDomain(host, new URL(details.redirectUrl).hostname);
+		},
+		{ urls: ['<all_urls>'], types: ['main_frame', 'sub_frame'] }
+	);
 });