diff --git a/src/api/gramjs/methods/index.ts b/src/api/gramjs/methods/index.ts
index 2e1c7aa82..a11701927 100644
--- a/src/api/gramjs/methods/index.ts
+++ b/src/api/gramjs/methods/index.ts
@@ -47,6 +47,7 @@ export {
   fetchAuthorizations, terminateAuthorization, terminateAllAuthorizations,
   fetchNotificationExceptions, fetchNotificationSettings, updateContactSignUpNotification, updateNotificationSettings,
   fetchLanguages, fetchLangPack, fetchPrivacySettings, setPrivacySettings, registerDevice, unregisterDevice,
+  updateIsOnline,
 } from './settings';
 
 export {
diff --git a/src/api/gramjs/methods/settings.ts b/src/api/gramjs/methods/settings.ts
index 932a88b87..17669746c 100644
--- a/src/api/gramjs/methods/settings.ts
+++ b/src/api/gramjs/methods/settings.ts
@@ -366,9 +366,15 @@ export async function setPrivacySettings(
   return buildPrivacyRules(result.rules);
 }
 
+export async function updateIsOnline(isOnline: boolean) {
+  await invokeRequest(new GramJs.account.UpdateStatus({ offline: !isOnline }));
+}
+
 function updateLocalDb(
-  result: GramJs.account.PrivacyRules | GramJs.contacts.Blocked | GramJs.contacts.BlockedSlice |
-  GramJs.Updates | GramJs.UpdatesCombined,
+  result: (
+    GramJs.account.PrivacyRules | GramJs.contacts.Blocked | GramJs.contacts.BlockedSlice |
+    GramJs.Updates | GramJs.UpdatesCombined
+  ),
 ) {
   result.users.forEach((user) => {
     if (user instanceof GramJs.User) {
diff --git a/src/components/main/Main.tsx b/src/components/main/Main.tsx
index 052898d64..0761a1962 100644
--- a/src/components/main/Main.tsx
+++ b/src/components/main/Main.tsx
@@ -49,7 +49,7 @@ type StateProps = {
 };
 
 type DispatchProps = Pick<GlobalActions, (
-  'loadAnimatedEmojis' | 'loadNotificationSettings' | 'loadNotificationExceptions'
+  'loadAnimatedEmojis' | 'loadNotificationSettings' | 'loadNotificationExceptions' | 'updateIsOnline'
 )>;
 
 const ANIMATION_DURATION = 350;
@@ -75,6 +75,7 @@ const Main: FC<StateProps & DispatchProps> = ({
   loadAnimatedEmojis,
   loadNotificationSettings,
   loadNotificationExceptions,
+  updateIsOnline,
 }) => {
   if (DEBUG && !DEBUG_isLogged) {
     DEBUG_isLogged = true;
@@ -85,11 +86,12 @@ const Main: FC<StateProps & DispatchProps> = ({
   // Initial API calls
   useEffect(() => {
     if (lastSyncTime) {
+      updateIsOnline(true);
       loadAnimatedEmojis();
       loadNotificationSettings();
       loadNotificationExceptions();
     }
-  }, [lastSyncTime, loadAnimatedEmojis, loadNotificationExceptions, loadNotificationSettings]);
+  }, [lastSyncTime, loadAnimatedEmojis, loadNotificationExceptions, loadNotificationSettings, updateIsOnline]);
 
   const {
     transitionClassNames: middleColumnTransitionClassNames,
@@ -129,6 +131,13 @@ const Main: FC<StateProps & DispatchProps> = ({
     }
   }, [animationLevel, isRightColumnShown]);
 
+  useBackgroundMode(() => {
+    updateIsOnline(false);
+  }, () => {
+    updateIsOnline(true);
+  });
+
+  // Browser tab indicators
   useBackgroundMode(() => {
     const initialUnread = selectCountNotMutedUnread(getGlobal());
     let index = 0;
@@ -220,6 +229,6 @@ export default memo(withGlobal(
     };
   },
   (setGlobal, actions): DispatchProps => pick(actions, [
-    'loadAnimatedEmojis', 'loadNotificationSettings', 'loadNotificationExceptions',
+    'loadAnimatedEmojis', 'loadNotificationSettings', 'loadNotificationExceptions', 'updateIsOnline',
   ]),
 )(Main));
diff --git a/src/global/types.ts b/src/global/types.ts
index eb7e2aaae..f128609f0 100644
--- a/src/global/types.ts
+++ b/src/global/types.ts
@@ -446,7 +446,7 @@ export type ActionTypes = (
   'loadAuthorizations' | 'terminateAuthorization' | 'terminateAllAuthorizations' |
   'loadNotificationSettings' | 'updateContactSignUpNotification' | 'updateNotificationSettings' |
   'loadLanguages' | 'loadPrivacySettings' | 'setPrivacyVisibility' | 'setPrivacySettings' |
-  'loadNotificationExceptions' | 'setThemeSettings' |
+  'loadNotificationExceptions' | 'setThemeSettings' | 'updateIsOnline' |
   // Stickers & GIFs
   'loadStickerSets' | 'loadAddedStickers' | 'loadRecentStickers' | 'loadFavoriteStickers' | 'loadFeaturedStickers' |
   'loadStickers' | 'setStickerSearchQuery' | 'loadSavedGifs' | 'setGifSearchQuery' | 'searchMoreGifs' |
diff --git a/src/lib/gramjs/tl/api.d.ts b/src/lib/gramjs/tl/api.d.ts
index 6c1582fe5..65c2d9cf7 100644
--- a/src/lib/gramjs/tl/api.d.ts
+++ b/src/lib/gramjs/tl/api.d.ts
@@ -285,7 +285,7 @@ namespace Api {
   export type TypeAccessPointRule = AccessPointRule;
   export type TypeTlsClientHello = TlsClientHello;
   export type TypeTlsBlock = TlsBlockString | TlsBlockRandom | TlsBlockZero | TlsBlockDomain | TlsBlockGrease | TlsBlockScope;
-
+  
 
   export namespace storage {
     export type TypeFileType = storage.FileUnknown | storage.FilePartial | storage.FileJpeg | storage.FileGif | storage.FilePng | storage.FilePdf | storage.FileMp3 | storage.FileMov | storage.FileMp4 | storage.FileWebp;
@@ -7001,7 +7001,7 @@ namespace Api {
   }> {
     entries: Api.TypeTlsBlock[];
   };
-
+  
 
   export namespace storage {
     export class FileUnknown extends VirtualClass<void> {};
@@ -8500,7 +8500,7 @@ namespace Api {
   }>, Api.TypeDestroySessionRes> {
     sessionId: long;
   };
-
+  
 
   export namespace auth {
     export class SendCode extends Request<Partial<{
diff --git a/src/lib/gramjs/tl/apiTl.js b/src/lib/gramjs/tl/apiTl.js
index 488eaa57f..9f231b41f 100644
--- a/src/lib/gramjs/tl/apiTl.js
+++ b/src/lib/gramjs/tl/apiTl.js
@@ -922,6 +922,7 @@ account.unregisterDevice#3076c4bf token_type:int token:string other_uids:Vector<
 account.updateNotifySettings#84be5b93 peer:InputNotifyPeer settings:InputPeerNotifySettings = Bool;
 account.getNotifySettings#12b3ad31 peer:InputNotifyPeer = PeerNotifySettings;
 account.updateProfile#78515775 flags:# first_name:flags.0?string last_name:flags.1?string about:flags.2?string = User;
+account.updateStatus#6628562c offline:Bool = Bool;
 account.getWallPapers#aabb1763 hash:int = account.WallPapers;
 account.checkUsername#2714d86c username:string = Bool;
 account.updateUsername#3e0bdd7c username:string = User;
diff --git a/src/lib/gramjs/tl/static/api.reduced.tl b/src/lib/gramjs/tl/static/api.reduced.tl
index cb633ab81..14d70170a 100644
--- a/src/lib/gramjs/tl/static/api.reduced.tl
+++ b/src/lib/gramjs/tl/static/api.reduced.tl
@@ -922,6 +922,7 @@ account.unregisterDevice#3076c4bf token_type:int token:string other_uids:Vector<
 account.updateNotifySettings#84be5b93 peer:InputNotifyPeer settings:InputPeerNotifySettings = Bool;
 account.getNotifySettings#12b3ad31 peer:InputNotifyPeer = PeerNotifySettings;
 account.updateProfile#78515775 flags:# first_name:flags.0?string last_name:flags.1?string about:flags.2?string = User;
+account.updateStatus#6628562c offline:Bool = Bool;
 account.getWallPapers#aabb1763 hash:int = account.WallPapers;
 account.checkUsername#2714d86c username:string = Bool;
 account.updateUsername#3e0bdd7c username:string = User;
diff --git a/src/modules/actions/api/settings.ts b/src/modules/actions/api/settings.ts
index b4bb5d659..9b91bf98e 100644
--- a/src/modules/actions/api/settings.ts
+++ b/src/modules/actions/api/settings.ts
@@ -513,3 +513,7 @@ function buildInputPrivacyRules(global: GlobalState, {
 
   return rules;
 }
+
+addReducer('updateIsOnline', (global, actions, payload) => {
+  callApi('updateIsOnline', payload);
+});