diff --git a/renderer/components/layouts/account.tsx b/renderer/components/layouts/account.tsx
index 9900d6db..31d0d83a 100644
--- a/renderer/components/layouts/account.tsx
+++ b/renderer/components/layouts/account.tsx
@@ -9,8 +9,20 @@ import generateNotification from '@/utils/notification'
 import generator, { Entity, WebSocketInterface } from 'megalodon'
 import { Context } from '@/utils/i18n'
 import { useHotkeys } from 'react-hotkeys-hook'
-import { Avatar, IconButton, List, ListItem, ListItemPrefix, Popover, PopoverContent, PopoverHandler } from '@material-tailwind/react'
+import {
+  Avatar,
+  Badge,
+  IconButton,
+  List,
+  ListItem,
+  ListItemPrefix,
+  Popover,
+  PopoverContent,
+  PopoverHandler
+} from '@material-tailwind/react'
 import Thirdparty from '../Thirdparty'
+import { useUnreads } from '@/utils/unreads'
+import { unreadCount } from '@/entities/marker'
 
 type LayoutProps = {
   children: React.ReactNode
@@ -28,6 +40,7 @@ export default function Layout({ children }: LayoutProps) {
   const router = useRouter()
   const { formatMessage } = useIntl()
   const streamings = useRef<Array<WebSocketInterface>>([])
+  const { unreads, setUnreads } = useUnreads()
 
   for (let i = 1; i < 9; i++) {
     useHotkeys(`mod+${i}`, () => {
@@ -50,6 +63,18 @@ export default function Layout({ children }: LayoutProps) {
         // Start user streaming for notification
         const client = generator(account.sns, account.url, account.access_token, 'Whalebird')
         const instance = await client.getInstance()
+        const notifications = (await client.getNotifications()).data
+        const res = await client.getMarkers(['notifications'])
+        const marker = res.data as Entity.Marker
+        if (marker.notifications) {
+          const count = unreadCount(marker.notifications, notifications)
+          setUnreads(current =>
+            Object.assign({}, current, {
+              [account.id?.toString()]: count
+            })
+          )
+        }
+
         const ws = generator(account.sns, instance.data.urls.streaming_api, account.access_token, 'Whalebird')
         const socket = ws.userSocket()
         streamings.current = [...streamings.current, socket]
@@ -148,15 +173,17 @@ export default function Layout({ children }: LayoutProps) {
                     </List>
                   </PopoverContent>
                 </Popover>
-                <Avatar
-                  alt={account.domain}
-                  src={account.avatar}
-                  title={`${account.username}@${account.domain}`}
-                  aria-label={`${account.username}@${account.domain}`}
-                  className="p-1"
-                  onClick={() => openAccount(account.id)}
-                  onContextMenu={() => openContextMenu(account.id)}
-                />
+                <Badge className="mt-1" color="green" invisible={!(unreads[account.id.toString()] > 0)}>
+                  <Avatar
+                    alt={account.domain}
+                    src={account.avatar}
+                    title={`${account.username}@${account.domain}`}
+                    aria-label={`${account.username}@${account.domain}`}
+                    className="p-1"
+                    onClick={() => openAccount(account.id)}
+                    onContextMenu={() => openContextMenu(account.id)}
+                  />
+                </Badge>
               </div>
             ))}
             <div className="flex flex-col items-center">
diff --git a/renderer/components/layouts/timelines.tsx b/renderer/components/layouts/timelines.tsx
index db0eae26..328f190e 100644
--- a/renderer/components/layouts/timelines.tsx
+++ b/renderer/components/layouts/timelines.tsx
@@ -1,5 +1,5 @@
 import { Account, db } from '@/db'
-import { Card, List, ListItem, ListItemPrefix } from '@material-tailwind/react'
+import { Card, Chip, List, ListItem, ListItemPrefix, ListItemSuffix } from '@material-tailwind/react'
 import generator, { Entity } from 'megalodon'
 import { useRouter } from 'next/router'
 import { useEffect, useState } from 'react'
@@ -7,6 +7,7 @@ import { useHotkeys } from 'react-hotkeys-hook'
 import { FaBell, FaGlobe, FaHouse, FaList, FaUsers } from 'react-icons/fa6'
 import { useIntl } from 'react-intl'
 import Jump from '../Jump'
+import { useUnreads } from '@/utils/unreads'
 
 type LayoutProps = {
   children: React.ReactNode
@@ -15,6 +16,7 @@ type LayoutProps = {
 export default function Layout({ children }: LayoutProps) {
   const router = useRouter()
   const { formatMessage } = useIntl()
+  const { unreads } = useUnreads()
 
   const [account, setAccount] = useState<Account | null>(null)
   const [lists, setLists] = useState<Array<Entity.List>>([])
@@ -89,6 +91,16 @@ export default function Layout({ children }: LayoutProps) {
             >
               <ListItemPrefix>{page.icon}</ListItemPrefix>
               <span className="sidebar-menu text-ellipsis whitespace-nowrap overflow-hidden">{page.title}</span>
+              {page.id === 'notifications' && unreads[account?.id?.toString()] ? (
+                <ListItemSuffix>
+                  <Chip
+                    value={unreads[account.id.toString()]}
+                    variant="ghost"
+                    size="sm"
+                    className="rounded-full text-blue-100 bg-blue-600"
+                  />
+                </ListItemSuffix>
+              ) : null}
             </ListItem>
           ))}
           {lists.map(list => (
diff --git a/renderer/components/timelines/Notifications.tsx b/renderer/components/timelines/Notifications.tsx
index d8360a6e..5e1810aa 100644
--- a/renderer/components/timelines/Notifications.tsx
+++ b/renderer/components/timelines/Notifications.tsx
@@ -7,9 +7,10 @@ import Notification from './notification/Notification'
 import { Spinner } from '@material-tailwind/react'
 import { useRouter } from 'next/router'
 import Detail from '../detail/Detail'
-import { Marker } from '@/entities/marker'
+import { Marker, unreadCount } from '@/entities/marker'
 import { FaCheck } from 'react-icons/fa6'
 import { useToast } from '@/utils/toast'
+import { useUnreads } from '@/utils/unreads'
 
 const TIMELINE_STATUSES_COUNT = 30
 const TIMELINE_MAX_STATUSES = 2147483647
@@ -22,7 +23,7 @@ type Props = {
 
 export default function Notifications(props: Props) {
   const [notifications, setNotifications] = useState<Array<Entity.Notification>>([])
-  const [unreads, setUnreads] = useState<Array<Entity.Notification>>([])
+  const [unreadNotifications, setUnreadNotifications] = useState<Array<Entity.Notification>>([])
   const [firstItemIndex, setFirstItemIndex] = useState(TIMELINE_MAX_STATUSES)
   const [marker, setMarker] = useState<Marker | null>(null)
   const [pleromaUnreads, setPleromaUnreads] = useState<Array<string>>([])
@@ -31,7 +32,7 @@ export default function Notifications(props: Props) {
   const streaming = useRef<WebSocketInterface | null>(null)
   const router = useRouter()
   const showToast = useToast()
-
+  const { setUnreads } = useUnreads()
   const { formatMessage } = useIntl()
 
   useEffect(() => {
@@ -47,7 +48,7 @@ export default function Notifications(props: Props) {
       })
       streaming.current.on('notification', (notification: Entity.Notification) => {
         if (scrollerRef.current && scrollerRef.current.scrollTop > 10) {
-          setUnreads(current => [notification, ...current])
+          setUnreadNotifications(current => [notification, ...current])
         } else {
           setNotifications(current => [notification, ...current])
         }
@@ -57,7 +58,7 @@ export default function Notifications(props: Props) {
     f()
 
     return () => {
-      setUnreads([])
+      setUnreadNotifications([])
       setFirstItemIndex(TIMELINE_MAX_STATUSES)
       setNotifications([])
       if (streaming.current) {
@@ -73,11 +74,20 @@ export default function Notifications(props: Props) {
     // In pleroma, last_read_id is incorrect.
     // Items that have not been marked may also be read. So, if marker has unread_count, we should use it for unreads.
     if (marker && marker.unread_count) {
-      const allNotifications = unreads.concat(notifications)
+      const allNotifications = unreadNotifications.concat(notifications)
       const u = allNotifications.slice(0, marker.unread_count).map(n => n.id)
       setPleromaUnreads(u)
     }
-  }, [marker, unreads, notifications])
+
+    if (marker) {
+      const count = unreadCount(marker, unreadNotifications.concat(notifications))
+      setUnreads(current =>
+        Object.assign({}, current, {
+          [props.account.id.toString()]: count
+        })
+      )
+    }
+  }, [marker, unreadNotifications, notifications])
 
   const loadNotifications = async (client: MegalodonInterface, maxId?: string): Promise<Array<Entity.Notification>> => {
     let options = { limit: 30 }
@@ -126,6 +136,11 @@ export default function Notifications(props: Props) {
       const marker = res.data as Entity.Marker
       if (marker.notifications) {
         setMarker(marker.notifications)
+        setUnreads(current =>
+          Object.assign({}, current, {
+            [props.account.id?.toString()]: 0
+          })
+        )
       }
     } catch {
       showToast({ text: formatMessage({ id: 'alert.failed_mark' }), type: 'failure' })
@@ -144,13 +159,13 @@ export default function Notifications(props: Props) {
 
   const prependUnreads = useCallback(() => {
     console.debug('prepending')
-    const u = unreads.slice().reverse().slice(0, TIMELINE_STATUSES_COUNT).reverse()
+    const u = unreadNotifications.slice().reverse().slice(0, TIMELINE_STATUSES_COUNT).reverse()
     const remains = u.slice(0, -1 * TIMELINE_STATUSES_COUNT)
-    setUnreads(() => remains)
+    setUnreadNotifications(() => remains)
     setFirstItemIndex(() => firstItemIndex - u.length)
     setNotifications(() => [...u, ...notifications])
     return false
-  }, [firstItemIndex, notifications, setNotifications, unreads])
+  }, [firstItemIndex, notifications, setNotifications, unreadNotifications])
 
   const timelineClass = () => {
     if (router.query.detail) {
diff --git a/renderer/entities/marker.ts b/renderer/entities/marker.ts
index 41a78ea9..09d55ad7 100644
--- a/renderer/entities/marker.ts
+++ b/renderer/entities/marker.ts
@@ -1,6 +1,15 @@
+import { Entity } from 'megalodon'
+
 export type Marker = {
   last_read_id: string
   version: number
   updated_at: string
   unread_count?: number
 }
+
+export function unreadCount(marker: Marker, notifications: Array<Entity.Notification>): number {
+  if (marker.unread_count !== undefined) {
+    return marker.unread_count
+  }
+  return notifications.filter(n => parseInt(n.id) > parseInt(marker.last_read_id)).length
+}
diff --git a/renderer/pages/_app.tsx b/renderer/pages/_app.tsx
index 692568b6..2fc29315 100644
--- a/renderer/pages/_app.tsx
+++ b/renderer/pages/_app.tsx
@@ -5,6 +5,7 @@ import TimelineLayout from '@/components/layouts/timelines'
 import { IntlProviderWrapper } from '@/utils/i18n'
 import { ThemeProvider } from '@material-tailwind/react'
 import { ToastProvider } from '@/utils/toast'
+import { UnreadsProvider } from '@/utils/unreads'
 
 export default function MyApp({ Component, pageProps }: AppProps) {
   const customTheme = {
@@ -104,11 +105,13 @@ export default function MyApp({ Component, pageProps }: AppProps) {
     <ThemeProvider value={customTheme}>
       <IntlProviderWrapper>
         <ToastProvider>
-          <AccountLayout>
-            <TimelineLayout>
-              <Component {...pageProps} />
-            </TimelineLayout>
-          </AccountLayout>
+          <UnreadsProvider>
+            <AccountLayout>
+              <TimelineLayout>
+                <Component {...pageProps} />
+              </TimelineLayout>
+            </AccountLayout>
+          </UnreadsProvider>
         </ToastProvider>
       </IntlProviderWrapper>
     </ThemeProvider>
diff --git a/renderer/utils/unreads.tsx b/renderer/utils/unreads.tsx
new file mode 100644
index 00000000..1990c8b3
--- /dev/null
+++ b/renderer/utils/unreads.tsx
@@ -0,0 +1,29 @@
+import { Dispatch, SetStateAction, createContext, useContext, useState } from 'react'
+
+type UnreadsType = { [key: string]: number }
+
+type Context = {
+  unreads: UnreadsType
+  setUnreads: Dispatch<SetStateAction<UnreadsType>>
+}
+
+const UnreadsContext = createContext<Context>({
+  unreads: {},
+  setUnreads: (_: UnreadsType) => {}
+})
+
+UnreadsContext.displayName = 'UnreadsContext'
+
+export const useUnreads = () => {
+  return useContext(UnreadsContext)
+}
+
+type Props = {
+  children: React.ReactNode
+}
+
+export const UnreadsProvider: React.FC<Props> = ({ children }) => {
+  const [unreads, setUnreads] = useState<UnreadsType>({})
+
+  return <UnreadsContext.Provider value={{ unreads, setUnreads }}>{children}</UnreadsContext.Provider>
+}