diff --git a/packages/frontend-embed/src/style.scss b/packages/frontend-embed/src/style.scss
index 02b09633e7..b5cb394114 100644
--- a/packages/frontend-embed/src/style.scss
+++ b/packages/frontend-embed/src/style.scss
@@ -127,7 +127,9 @@ rt {
 }
 
 ._button {
-	@extend ._noSelect;
+	user-select: none;
+	-webkit-user-select: none;
+	-webkit-touch-callout: none;
 	appearance: none;
 	display: inline-block;
 	padding: 0;
diff --git a/packages/frontend/src/_dev_boot_.ts b/packages/frontend/src/_dev_boot_.ts
index 907e5ce7e7..7c6e537fbc 100644
--- a/packages/frontend/src/_dev_boot_.ts
+++ b/packages/frontend/src/_dev_boot_.ts
@@ -7,15 +7,10 @@
 // よって、devモードとして起動されるときはビルド時に組み込む形としておく。
 // (pnpm start時はpugファイルの中で静的リソースとして読み込むようになっており、この問題は起こっていない)
 import '@tabler/icons-webfont/dist/tabler-icons.scss';
-import { embedPage } from '@/config.js';
 
 await main();
 
-if (embedPage) {
-	import('@/_embed_boot_.js');
-} else {
-	import('@/_boot_.js');
-}
+import('@/_boot_.js');
 
 /**
  * backend/src/server/web/boot.jsで差し込まれている起動処理のうち、最低限必要なものを模倣するための処理
diff --git a/packages/frontend/src/account.ts b/packages/frontend/src/account.ts
index e9e2b60387..fb1d8e9a44 100644
--- a/packages/frontend/src/account.ts
+++ b/packages/frontend/src/account.ts
@@ -14,7 +14,6 @@ import { apiUrl } from '@/config.js';
 import { waiting, popup, popupMenu, success, alert } from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { unisonReload, reloadChannel } from '@/scripts/unison-reload.js';
-import { embedPage } from '@/config.js';
 
 // TODO: 他のタブと永続化されたstateを同期
 
@@ -23,7 +22,6 @@ type Account = Misskey.entities.MeDetailed & { token: string };
 const accountData = miLocalStorage.getItem('account');
 
 function initAccount() {
-	if (embedPage) return null;
 	if (accountData) return reactive(JSON.parse(accountData) as Account);
 	return null;
 }
@@ -85,14 +83,10 @@ export async function signout() {
 }
 
 export async function getAccounts(): Promise<{ id: Account['id'], token: Account['token'] }[]> {
-	if (embedPage) return [];
-
 	return (await get('accounts')) || [];
 }
 
 export async function addAccount(id: Account['id'], token: Account['token']) {
-	if (embedPage) return;
-
 	const accounts = await getAccounts();
 	if (!accounts.some(x => x.id === id)) {
 		await set('accounts', accounts.concat([{ id, token }]));
@@ -194,8 +188,6 @@ export async function refreshAccount() {
 }
 
 export async function login(token: Account['token'], redirect?: string) {
-	if (embedPage) return;
-
 	const showing = ref(true);
 	const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkWaitingDialog.vue')), {
 		success: false,
diff --git a/packages/frontend/src/instance.ts b/packages/frontend/src/instance.ts
index 0067543411..6847321d6c 100644
--- a/packages/frontend/src/instance.ts
+++ b/packages/frontend/src/instance.ts
@@ -8,7 +8,6 @@ import * as Misskey from 'misskey-js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { miLocalStorage } from '@/local-storage.js';
 import { DEFAULT_INFO_IMAGE_URL, DEFAULT_NOT_FOUND_IMAGE_URL, DEFAULT_SERVER_ERROR_IMAGE_URL } from '@/const.js';
-import { embedPage } from '@/config.js';
 
 // TODO: 他のタブと永続化されたstateを同期
 
@@ -37,7 +36,7 @@ export const infoImageUrl = computed(() => instance.infoImageUrl ?? DEFAULT_INFO
 
 export const notFoundImageUrl = computed(() => instance.notFoundImageUrl ?? DEFAULT_NOT_FOUND_IMAGE_URL);
 
-export const isEnabledUrlPreview = computed(() => (instance.enableUrlPreview ?? true) && !embedPage);
+export const isEnabledUrlPreview = computed(() => instance.enableUrlPreview ?? true);
 
 export async function fetchInstance(force = false): Promise<Misskey.entities.MetaDetailed> {
 	if (!force) {
diff --git a/packages/frontend/src/scripts/idb-proxy.ts b/packages/frontend/src/scripts/idb-proxy.ts
index a3e81da733..20f51660c7 100644
--- a/packages/frontend/src/scripts/idb-proxy.ts
+++ b/packages/frontend/src/scripts/idb-proxy.ts
@@ -10,7 +10,6 @@ import {
 	set as iset,
 	del as idel,
 } from 'idb-keyval';
-import { embedPage } from '@/config.js';
 import { miLocalStorage } from '@/local-storage.js';
 
 const PREFIX = 'idbfallback::';
@@ -27,10 +26,7 @@ if (window.Cypress) {
 	console.log('Cypress detected. It will use localStorage.');
 }
 
-if (embedPage) {
-	idbAvailable = false;
-	console.log('Embed page detected. It will use safeSessionStorage.');
-} else if (idbAvailable) {
+if (idbAvailable) {
 	await iset('idb-test', 'test')
 		.catch(err => {
 			console.error('idb error', err);
diff --git a/packages/frontend/src/scripts/please-login.ts b/packages/frontend/src/scripts/please-login.ts
index 93db66fe43..5a28852245 100644
--- a/packages/frontend/src/scripts/please-login.ts
+++ b/packages/frontend/src/scripts/please-login.ts
@@ -7,7 +7,6 @@ import { defineAsyncComponent, inject } from 'vue';
 import { $i } from '@/account.js';
 import { i18n } from '@/i18n.js';
 import { popup } from '@/os.js';
-import { embedPage } from '@/config.js';
 
 export type OpenOnRemoteOptions = {
 	/**
@@ -48,22 +47,18 @@ export type OpenOnRemoteOptions = {
 export function pleaseLogin(path?: string, openOnRemote?: OpenOnRemoteOptions) {
 	if ($i) return;
 
-	if (embedPage) {
-		window.open(path ?? '/', '_blank', 'noopener');
-	} else {
-		const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSigninDialog.vue')), {
-			autoSet: true,
-			message: openOnRemote ? i18n.ts.signinOrContinueOnRemote : i18n.ts.signinRequired,
-			openOnRemote,
-		}, {
-			cancelled: () => {
-				if (path) {
-					window.location.href = path;
-				}
-			},
-			closed: () => dispose(),
-		});
-	}
+	const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSigninDialog.vue')), {
+		autoSet: true,
+		message: openOnRemote ? i18n.ts.signinOrContinueOnRemote : i18n.ts.signinRequired,
+		openOnRemote,
+	}, {
+		cancelled: () => {
+			if (path) {
+				window.location.href = path;
+			}
+		},
+		closed: () => dispose(),
+	});
 
 	throw new Error('signin required');
 }
diff --git a/packages/frontend/src/scripts/theme.ts b/packages/frontend/src/scripts/theme.ts
index 4075cb36a5..c7f8b3d596 100644
--- a/packages/frontend/src/scripts/theme.ts
+++ b/packages/frontend/src/scripts/theme.ts
@@ -11,7 +11,6 @@ import { globalEvents } from '@/events.js';
 import lightTheme from '@/themes/_light.json5';
 import darkTheme from '@/themes/_dark.json5';
 import { miLocalStorage } from '@/local-storage.js';
-import { embedPage } from '@/config.js';
 
 export type Theme = {
 	id: string;
@@ -96,9 +95,7 @@ export function applyTheme(theme: Theme, persist = true) {
 		document.documentElement.style.setProperty(`--${k}`, v.toString());
 	}
 
-	if (!embedPage) {
-		document.documentElement.style.setProperty('color-scheme', colorScheme);
-	}
+	document.documentElement.style.setProperty('color-scheme', colorScheme);
 
 	if (persist) {
 		miLocalStorage.setItem('theme', JSON.stringify(props));
diff --git a/packages/frontend/src/stream.ts b/packages/frontend/src/stream.ts
index 41b2a29b68..5b6460ed60 100644
--- a/packages/frontend/src/stream.ts
+++ b/packages/frontend/src/stream.ts
@@ -7,8 +7,7 @@ import * as Misskey from 'misskey-js';
 import { markRaw } from 'vue';
 import { $i } from '@/account.js';
 import { wsOrigin } from '@/config.js';
-import { StreamMock } from '@/scripts/stream-mock.js';
-import { embedPage } from '@/config.js';
+//import { StreamMock } from '@/scripts/stream-mock.js';
 
 // heart beat interval in ms
 const HEART_BEAT_INTERVAL = 1000 * 60;
@@ -21,14 +20,9 @@ export function useStream(): Misskey.IStream {
 	if (stream) return stream;
 
 	// TODO: No Websocketモードもここで判定
-	if (embedPage) {
-		stream = markRaw(new StreamMock(wsOrigin, null));
-		return stream;
-	} else {
-		stream = markRaw(new Misskey.Stream(wsOrigin, $i ? {
-			token: $i.token,
-		} : null));
-	}
+	stream = markRaw(new Misskey.Stream(wsOrigin, $i ? {
+		token: $i.token,
+	} : null));
 
 	if (timeoutHeartBeat) window.clearTimeout(timeoutHeartBeat);
 	timeoutHeartBeat = window.setTimeout(heartbeat, HEART_BEAT_INTERVAL);