diff --git a/src/assets/localization/fallback.strings b/src/assets/localization/fallback.strings
index 181c4ed39..642b654e1 100644
--- a/src/assets/localization/fallback.strings
+++ b/src/assets/localization/fallback.strings
@@ -1296,9 +1296,11 @@
 "SettingsPasscodeStart2" = "Note: if you forget your local passcode, you'll need to log out of Telegram Web A and log in again.";
 "CurrentPasswordPlaceholder" = "Current password";
 "ChangeYourProfilePicture" = "Change your profile picture";
-"TooManyTabsTitle" = "Such error, many tabs";
-"TooManyTabsDescription" = "Telegram supports only one active tab with the app.\nPlease reload this page to continue using this tab or close it.";
-"TooManyTabsReload" = "Reload app";
+"AppInactiveOtherClientTitle" = "Many sessions. So conflict.";
+"AppInactiveOtherClientDescription" = "Please, keep only one version of the app open.\nReload this page to continue using this tab or close it.";
+"AppInactiveAuthTitle" = "Many logins. So conflict.";
+"AppInactiveAuthDescription" = "Please, keep only one tab open during login.\nReload this page to continue using this tab or close it.";
+"AppInactiveReload" = "Reload App";
 "SlowmodeEnabled" = "Slowmode enabled";
 "SomethingWentWrong" = "Something went wrong";
 "MediaViewDownloading" = "{count}% downloading...";
diff --git a/src/components/App.tsx b/src/components/App.tsx
index 3845ffce2..fdde35eca 100644
--- a/src/components/App.tsx
+++ b/src/components/App.tsx
@@ -23,8 +23,7 @@ import { updateSizes } from '../util/windowSize';
 
 import useTauriDrag from '../hooks/tauri/useTauriDrag';
 import useAppLayout from '../hooks/useAppLayout';
-import useFlag from '../hooks/useFlag';
-import usePreviousDeprecated from '../hooks/usePreviousDeprecated';
+import usePrevious from '../hooks/usePrevious';
 
 // import Test from './test/TestLocale';
 import Auth from './auth/Auth';
@@ -40,7 +39,7 @@ type StateProps = {
   authState: GlobalState['authState'];
   isScreenLocked?: boolean;
   hasPasscode?: boolean;
-  isInactiveAuth?: boolean;
+  inactiveReason?: 'auth' | 'otherClient';
   hasWebAuthTokenFailed?: boolean;
   isTestServer?: boolean;
   theme: ThemeKey;
@@ -61,12 +60,11 @@ const App: FC<StateProps> = ({
   authState,
   isScreenLocked,
   hasPasscode,
-  isInactiveAuth,
+  inactiveReason,
   hasWebAuthTokenFailed,
   isTestServer,
   theme,
 }) => {
-  const [isInactive, markInactive, unmarkInactive] = useFlag(false);
   const { isMobile } = useAppLayout();
   const isMobileOs = PLATFORM_ENV === 'iOS' || PLATFORM_ENV === 'Android';
 
@@ -135,7 +133,7 @@ const App: FC<StateProps> = ({
   let activeKey: AppScreens;
   let page: UiLoaderPage | undefined;
 
-  if (isInactive) {
+  if (inactiveReason) {
     activeKey = AppScreens.inactive;
   } else if (isScreenLocked) {
     page = 'lock';
@@ -193,16 +191,14 @@ const App: FC<StateProps> = ({
   }, []);
 
   useEffect(() => {
-    if (isInactiveAuth) {
+    if (inactiveReason) {
       document.title = INACTIVE_PAGE_TITLE;
-      markInactive();
     } else {
       document.title = ACTIVE_PAGE_TITLE;
-      unmarkInactive();
     }
-  }, [isInactiveAuth, markInactive, unmarkInactive]);
+  }, [inactiveReason]);
 
-  const prevActiveKey = usePreviousDeprecated(activeKey);
+  const prevActiveKey = usePrevious(activeKey);
 
   function renderContent() {
     switch (activeKey) {
@@ -213,7 +209,7 @@ const App: FC<StateProps> = ({
       case AppScreens.lock:
         return <LockScreen isLocked={isScreenLocked} />;
       case AppScreens.inactive:
-        return <AppInactive />;
+        return <AppInactive inactiveReason={inactiveReason!} />;
     }
   }
 
@@ -255,7 +251,7 @@ export default withGlobal(
       authState: global.authState,
       isScreenLocked: global.passcode?.isScreenLocked,
       hasPasscode: global.passcode?.hasPasscode,
-      isInactiveAuth: selectTabState(global).isInactive,
+      inactiveReason: selectTabState(global).inactiveReason,
       hasWebAuthTokenFailed: global.hasWebAuthTokenFailed || global.hasWebAuthTokenPasswordRequired,
       theme: selectTheme(global),
       isTestServer: global.config?.isTestServer,
diff --git a/src/components/main/AppInactive.tsx b/src/components/main/AppInactive.tsx
index e15cdda41..50bb66ec5 100644
--- a/src/components/main/AppInactive.tsx
+++ b/src/components/main/AppInactive.tsx
@@ -1,7 +1,8 @@
-import type { FC } from '../../lib/teact/teact';
-import { useCallback } from '../../lib/teact/teact';
+import renderText from '../common/helpers/renderText';
 
 import useHistoryBack from '../../hooks/useHistoryBack';
+import useLang from '../../hooks/useLang';
+import useLastCallback from '../../hooks/useLastCallback';
 
 import Button from '../ui/Button';
 
@@ -9,10 +10,16 @@ import './AppInactive.scss';
 
 import appInactivePath from '../../assets/app-inactive.png';
 
-const AppInactive: FC = () => {
-  const handleReload = useCallback(() => {
+type OwnProps = {
+  inactiveReason: 'auth' | 'otherClient';
+};
+
+const AppInactive = ({ inactiveReason }: OwnProps) => {
+  const lang = useLang();
+
+  const handleReload = useLastCallback(() => {
     window.location.reload();
-  }, []);
+  });
 
   useHistoryBack({
     isActive: true,
@@ -24,15 +31,18 @@ const AppInactive: FC = () => {
     <div id="AppInactive">
       <div className="content">
         <img src={appInactivePath} alt="" />
-        <h3 className="title">Such error, many tabs</h3>
+        <h3 className="title">
+          {inactiveReason === 'auth' ? lang('AppInactiveAuthTitle') : lang('AppInactiveOtherClientTitle')}
+        </h3>
         <div className="description">
-          Telegram supports only one active tab with the app.
-          <br />
-          Please reload this page to continue using this tab or close it.
+          {renderText(
+            lang(inactiveReason === 'auth' ? 'AppInactiveAuthDescription' : 'AppInactiveOtherClientDescription'),
+            ['br'],
+          )}
         </div>
         <div className="actions">
           <Button isText ripple onClick={handleReload}>
-            Reload app
+            {lang('AppInactiveReload')}
           </Button>
         </div>
       </div>
diff --git a/src/config.ts b/src/config.ts
index 8b38d6f46..f43a7522f 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -67,6 +67,7 @@ export const AUTODOWNLOAD_FILESIZE_MB_LIMITS = [1, 5, 10, 50, 100, 500];
 export const DATA_BROADCAST_CHANNEL_PREFIX = 'tt-global';
 export const ESTABLISH_BROADCAST_CHANNEL_PREFIX = 'tt-establish';
 export const MULTITAB_LOCALSTORAGE_KEY_PREFIX = 'tt-multitab';
+export const INTERCLIENT_BROADCAST_CHANNEL = 'tgweb';
 export const DC_IDS = [1, 2, 3, 4, 5] as const;
 
 export const DOWNLOAD_WORKERS = 16;
diff --git a/src/global/actions/apiUpdaters/initial.ts b/src/global/actions/apiUpdaters/initial.ts
index ab38ad22d..440af3ac3 100644
--- a/src/global/actions/apiUpdaters/initial.ts
+++ b/src/global/actions/apiUpdaters/initial.ts
@@ -183,7 +183,7 @@ function onUpdateAuthorizationState<T extends GlobalState>(global: T, update: Ap
       };
       Object.values(global.byTabId).forEach(({ id: tabId }) => {
         global = updateTabState(global, {
-          isInactive: false,
+          inactiveReason: undefined,
         }, tabId);
       });
       setGlobal(global);
diff --git a/src/global/init.ts b/src/global/init.ts
index 57d17addb..9fcfeb899 100644
--- a/src/global/init.ts
+++ b/src/global/init.ts
@@ -115,7 +115,7 @@ addActionHandler('init', (global, actions, payload): ActionReturnType => {
     Object.values(global.byTabId).forEach(({ id: otherTabId }) => {
       if (otherTabId === tabId) return;
       global = updateTabState(global, {
-        isInactive: true,
+        inactiveReason: 'auth',
       }, otherTabId);
     });
   }
diff --git a/src/global/types/tabState.ts b/src/global/types/tabState.ts
index b6cd7d5a8..a89b0b912 100644
--- a/src/global/types/tabState.ts
+++ b/src/global/types/tabState.ts
@@ -101,7 +101,7 @@ export type TabState = {
   id: number;
   isBlurred?: boolean;
   isMasterTab: boolean;
-  isInactive?: boolean;
+  inactiveReason?: 'auth' | 'otherClient';
   shouldPreventComposerAnimation?: boolean;
   inviteHash?: string;
   canInstall?: boolean;
diff --git a/src/index.tsx b/src/index.tsx
index dace3136e..72efb8400 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -15,6 +15,7 @@ import { selectTabState } from './global/selectors';
 import { selectSharedSettings } from './global/selectors/sharedState';
 import { betterView } from './util/betterView';
 import { IS_TAURI } from './util/browser/globalEnvironment';
+import listenOtherClients from './util/browser/listenOtherClients';
 import { requestGlobal, subscribeToMultitabBroadcastChannel } from './util/browser/multitab';
 import { establishMultitabRole, subscribeToMasterChange } from './util/establishMultitabRole';
 import { initGlobal } from './util/init';
@@ -51,6 +52,7 @@ async function init() {
   if (!(window as any).isCompatTestPassed) return;
 
   checkAndAssignPermanentWebVersion();
+  listenOtherClients();
 
   subscribeToMultitabBroadcastChannel();
   await requestGlobal(APP_VERSION);
diff --git a/src/types/language.d.ts b/src/types/language.d.ts
index 79cfe6fa7..9e2805f56 100644
--- a/src/types/language.d.ts
+++ b/src/types/language.d.ts
@@ -1102,9 +1102,11 @@ export interface LangPair {
   'SettingsPasscodeStart2': undefined;
   'CurrentPasswordPlaceholder': undefined;
   'ChangeYourProfilePicture': undefined;
-  'TooManyTabsTitle': undefined;
-  'TooManyTabsDescription': undefined;
-  'TooManyTabsReload': undefined;
+  'AppInactiveOtherClientTitle': undefined;
+  'AppInactiveOtherClientDescription': undefined;
+  'AppInactiveAuthTitle': undefined;
+  'AppInactiveAuthDescription': undefined;
+  'AppInactiveReload': undefined;
   'SlowmodeEnabled': undefined;
   'SomethingWentWrong': undefined;
   'VideoPlayerBuffering': undefined;
diff --git a/src/util/browser/listenOtherClients.ts b/src/util/browser/listenOtherClients.ts
new file mode 100644
index 000000000..935087c33
--- /dev/null
+++ b/src/util/browser/listenOtherClients.ts
@@ -0,0 +1,22 @@
+import { getGlobal, setGlobal } from '../../global';
+
+import { APP_CODE_NAME, INTERCLIENT_BROADCAST_CHANNEL } from '../../config';
+import { updateTabState } from '../../global/reducers/tabs';
+import { selectTabState } from '../../global/selectors';
+
+export default function listenOtherClients() {
+  const channel = new BroadcastChannel(INTERCLIENT_BROADCAST_CHANNEL);
+
+  channel.addEventListener('message', (event) => {
+    if (event.data !== APP_CODE_NAME) {
+      let global = getGlobal();
+      const tabState = selectTabState(global);
+      global = updateTabState(global, {
+        inactiveReason: 'otherClient',
+      }, tabState.id);
+      setGlobal(global);
+    }
+  });
+
+  channel.postMessage(APP_CODE_NAME);
+}