diff --git a/src/main/browser/browser-client-page-profile-binding.test.ts b/src/main/browser/browser-client-page-profile-binding.test.ts
index 56f10481b6c..fc0c1ff140d 100644
--- a/src/main/browser/browser-client-page-profile-binding.test.ts
+++ b/src/main/browser/browser-client-page-profile-binding.test.ts
@@ -72,6 +72,7 @@ function createGuest(id: number) {
   return {
     id,
     isDestroyed: vi.fn(() => false),
+    isCurrentlyAudible: vi.fn(() => false),
     getType: vi.fn(() => 'webview'),
     setBackgroundThrottling: browserMocks.guestSetBackgroundThrottlingMock,
     setWindowOpenHandler: browserMocks.guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-auth-user-agent.test.ts b/src/main/browser/browser-manager-auth-user-agent.test.ts
index 14a283d1a35..37fee8641d0 100644
--- a/src/main/browser/browser-manager-auth-user-agent.test.ts
+++ b/src/main/browser/browser-manager-auth-user-agent.test.ts
@@ -93,6 +93,8 @@ describe('browserManager', () => {
     const guest = {
       id: 408,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -158,6 +160,8 @@ describe('browserManager', () => {
     const guest = {
       id: 409,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -208,6 +212,8 @@ describe('browserManager', () => {
     const guest = {
       id: 418,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -343,6 +349,8 @@ describe('browserManager', () => {
     const guest = {
       id: 419,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -386,6 +394,8 @@ describe('browserManager', () => {
     const guest = {
       id: 420,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-client-hosted-downloads.test.ts b/src/main/browser/browser-manager-client-hosted-downloads.test.ts
index b2b7ce54956..2b13b17588f 100644
--- a/src/main/browser/browser-manager-client-hosted-downloads.test.ts
+++ b/src/main/browser/browser-manager-client-hosted-downloads.test.ts
@@ -318,6 +318,7 @@ function createGuest(id: number) {
   return {
     id,
     isDestroyed: vi.fn(() => false),
+    isCurrentlyAudible: vi.fn(() => false),
     getType: vi.fn(() => 'webview'),
     setBackgroundThrottling: browserMocks.guestSetBackgroundThrottlingMock,
     setWindowOpenHandler: browserMocks.guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-destroyed-guest-test-fixture.ts b/src/main/browser/browser-manager-destroyed-guest-test-fixture.ts
index 3542a6c8b7e..64253c3925f 100644
--- a/src/main/browser/browser-manager-destroyed-guest-test-fixture.ts
+++ b/src/main/browser/browser-manager-destroyed-guest-test-fixture.ts
@@ -61,6 +61,9 @@ export class DestroyedGuestTestContents extends EventEmitter {
   setUserAgent(): void {}
   setWindowOpenHandler(): void {}
   setBackgroundThrottling(): void {}
+  isCurrentlyAudible(): boolean {
+    return false
+  }
 
   destroy(): void {
     this.destroyed = true
diff --git a/src/main/browser/browser-manager-downloads.test.ts b/src/main/browser/browser-manager-downloads.test.ts
index 3315c5e2493..61868bfa489 100644
--- a/src/main/browser/browser-manager-downloads.test.ts
+++ b/src/main/browser/browser-manager-downloads.test.ts
@@ -74,6 +74,7 @@ describe('browserManager', () => {
     const guest = {
       id: 407,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -154,6 +155,7 @@ describe('browserManager', () => {
     const guest = {
       id: 408,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -224,6 +226,7 @@ describe('browserManager', () => {
     const guest = {
       id: 409,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -256,16 +259,19 @@ describe('browserManager', () => {
       rendererWebContentsId
     })
 
-    expect(rendererSendMock.mock.calls.map(([channel]) => channel)).toEqual([
-      'browser:download-requested',
-      'browser:download-finished'
-    ])
+    // Registration also reports audio state; only download sends matter here.
+    expect(
+      rendererSendMock.mock.calls
+        .map(([channel]) => channel)
+        .filter((channel) => channel.startsWith('browser:download-'))
+    ).toEqual(['browser:download-requested', 'browser:download-finished'])
   })
 
   it('drops pending download records when an unregistered guest is destroyed', () => {
     const guest = {
       id: 412,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -296,6 +302,7 @@ describe('browserManager', () => {
     const guest = {
       id: 410,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -340,6 +347,7 @@ describe('browserManager', () => {
     const guest = {
       id: 411,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -371,10 +379,12 @@ describe('browserManager', () => {
     browserManager.handleGuestWillDownload({ guestWebContentsId: guest.id, item })
 
     expect(item.cancel).toHaveBeenCalledTimes(1)
-    expect(rendererSendMock.mock.calls.map(([channel]) => channel)).toEqual([
-      'browser:download-requested',
-      'browser:download-finished'
-    ])
+    // Registration also reports audio state; only download sends matter here.
+    expect(
+      rendererSendMock.mock.calls
+        .map(([channel]) => channel)
+        .filter((channel) => channel.startsWith('browser:download-'))
+    ).toEqual(['browser:download-requested', 'browser:download-finished'])
     expect(rendererSendMock).toHaveBeenCalledWith(
       'browser:download-finished',
       expect.objectContaining({
@@ -393,6 +403,7 @@ describe('browserManager', () => {
     const guest = {
       id: 420,
       isDestroyed: () => false,
+      isCurrentlyAudible: () => false,
       getType: () => 'webview',
       on: guestOnMock,
       off: guestOffMock,
@@ -413,10 +424,12 @@ describe('browserManager', () => {
     getDownloadItemEventHandler(item, 'on', 'updated')?.(event, 'interrupted')
     await new Promise<void>((resolve) => setImmediate(resolve))
     expect(item.cancel).toHaveBeenCalledTimes(1)
-    expect(rendererSendMock.mock.calls.map(([channel]) => channel)).toEqual([
-      'browser:download-requested',
-      'browser:download-finished'
-    ])
+    // Registration also reports audio state; only download sends matter here.
+    expect(
+      rendererSendMock.mock.calls
+        .map(([channel]) => channel)
+        .filter((channel) => channel.startsWith('browser:download-'))
+    ).toEqual(['browser:download-requested', 'browser:download-finished'])
     expect(rendererSendMock).toHaveBeenCalledWith(
       'browser:download-finished',
       expect.objectContaining({ status: 'failed', error: 'Download was interrupted.' })
diff --git a/src/main/browser/browser-manager-grab-shortcuts.test.ts b/src/main/browser/browser-manager-grab-shortcuts.test.ts
index 53a69d24fee..42097a1dc94 100644
--- a/src/main/browser/browser-manager-grab-shortcuts.test.ts
+++ b/src/main/browser/browser-manager-grab-shortcuts.test.ts
@@ -196,6 +196,8 @@ describe('browserManager grab operations', () => {
         webContentsId: GRAB_GUEST_WEB_CONTENTS_ID,
         rendererWebContentsId: GRAB_RENDERER_WEB_CONTENTS_ID
       })
+      // Registration also reports audio state; this test is about the chord.
+      rendererSendMock.mockClear()
 
       const preventDefault = pressAnnotateChord()
 
diff --git a/src/main/browser/browser-manager-grab-test-harness.ts b/src/main/browser/browser-manager-grab-test-harness.ts
index 3eb985261b4..008fff89a71 100644
--- a/src/main/browser/browser-manager-grab-test-harness.ts
+++ b/src/main/browser/browser-manager-grab-test-harness.ts
@@ -22,9 +22,11 @@ export type GrabTestMocks = {
 }
 
 export function makeGuest(id: number, mocks: GrabTestMocks): Electron.WebContents {
+  // oxlint-disable-next-line typescript/consistent-type-assertions -- SAFETY: grab tests drive only the guest members listed here.
   return {
     id,
     isDestroyed: mocks.guestIsDestroyedMock,
+    isCurrentlyAudible: vi.fn(() => false),
     getType: vi.fn(() => 'webview'),
     setBackgroundThrottling: mocks.guestSetBackgroundThrottlingMock,
     setWindowOpenHandler: mocks.guestSetWindowOpenHandlerMock,
@@ -75,5 +77,7 @@ export function resetGrabTestEnvironment(mocks: GrabTestMocks): Electron.WebCont
     webContentsId: GRAB_GUEST_WEB_CONTENTS_ID,
     rendererWebContentsId: GRAB_RENDERER_WEB_CONTENTS_ID
   })
+  // Registration also reports audio state; grab tests count only grab-driven sends.
+  mocks.rendererSendMock.mockClear()
   return guest
 }
diff --git a/src/main/browser/browser-manager-guest-lifecycle.test.ts b/src/main/browser/browser-manager-guest-lifecycle.test.ts
index 040b056aafa..8e1b9bea77f 100644
--- a/src/main/browser/browser-manager-guest-lifecycle.test.ts
+++ b/src/main/browser/browser-manager-guest-lifecycle.test.ts
@@ -95,6 +95,8 @@ describe('browserManager', () => {
       id: 104,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -123,6 +125,8 @@ describe('browserManager', () => {
         id: 129,
         isDestroyed: vi.fn(() => false),
         getType: vi.fn(() => 'webview'),
+        isCurrentlyAudible: vi.fn(() => false),
+        send: vi.fn(),
         setBackgroundThrottling: guestSetBackgroundThrottlingMock,
         setWindowOpenHandler: guestSetWindowOpenHandlerMock,
         on: guestOnMock,
@@ -196,6 +200,8 @@ describe('browserManager', () => {
       id: 139,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -231,6 +237,8 @@ describe('browserManager', () => {
     const guest = {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getURL: vi.fn(() => 'https://example.com/'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -259,6 +267,8 @@ describe('browserManager', () => {
     const guest = {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getURL: vi.fn(() => currentUrl),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -283,6 +293,8 @@ describe('browserManager', () => {
       id: 101,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -344,6 +356,8 @@ describe('browserManager', () => {
       id: 777,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -367,6 +381,8 @@ describe('browserManager', () => {
       id: 303,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -391,6 +407,8 @@ describe('browserManager', () => {
       id: 304,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -421,6 +439,8 @@ describe('browserManager', () => {
       id: 306,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -453,6 +473,8 @@ describe('browserManager', () => {
       id: 305,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -513,6 +535,8 @@ describe('browserManager', () => {
       id: 501,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: oldGuestOnMock,
@@ -524,6 +548,8 @@ describe('browserManager', () => {
       id: 502,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: newGuestOnMock,
@@ -558,6 +584,8 @@ describe('browserManager', () => {
       webContentsId: newGuest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about load-failure routing.
+    rendererSendMock.mockClear()
 
     const oldDidFailLoadHandler = oldGuestOnMock.mock.calls.find(
       ([event]) => event === 'did-fail-load'
@@ -608,6 +636,8 @@ describe('browserManager', () => {
       id: 808,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -654,6 +684,8 @@ describe('browserManager', () => {
       id: 809,
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
@@ -691,4 +723,49 @@ describe('browserManager', () => {
     expect(debuggerHandlers.has('detach')).toBe(false)
     expect(debuggerAttachMock).not.toHaveBeenCalled()
   })
+
+  // The renderer re-applies a tab's mute on each registration report and clears the
+  // speaker on the unregister report, so neither may be skipped.
+  it('reports page audio on registration and on change, and silence on unregister', () => {
+    const rendererSend = vi.fn()
+    const guest = {
+      id: 301,
+      isDestroyed: vi.fn(() => false),
+      getType: vi.fn(() => 'webview'),
+      isCurrentlyAudible: vi.fn(() => true),
+      setBackgroundThrottling: guestSetBackgroundThrottlingMock,
+      setWindowOpenHandler: guestSetWindowOpenHandlerMock,
+      on: guestOnMock,
+      off: guestOffMock,
+      openDevTools: guestOpenDevToolsMock
+    }
+    webContentsFromIdMock.mockImplementation((id: number) =>
+      id === guest.id
+        ? guest
+        : id === rendererWebContentsId
+          ? { isDestroyed: () => false, send: rendererSend }
+          : null
+    )
+    browserManager.attachGuestPolicies(guest as never)
+    const onAudioStateChanged: (event: { audible: boolean }) => void = guestOnMock.mock.calls.find(
+      ([event]) => event === 'audio-state-changed'
+    )?.[1]
+
+    browserManager.registerGuest({
+      browserPageId: 'page-1',
+      webContentsId: guest.id,
+      rendererWebContentsId
+    })
+    onAudioStateChanged({ audible: false })
+    browserManager.unregisterGuest('page-1')
+    onAudioStateChanged({ audible: true })
+
+    expect(
+      rendererSend.mock.calls.filter(([channel]) => channel === 'browser:audio-state-changed')
+    ).toEqual([
+      ['browser:audio-state-changed', { browserPageId: 'page-1', audible: true }],
+      ['browser:audio-state-changed', { browserPageId: 'page-1', audible: false }],
+      ['browser:audio-state-changed', { browserPageId: 'page-1', audible: false }]
+    ])
+  })
 })
diff --git a/src/main/browser/browser-manager-guest-policy-profile.test.ts b/src/main/browser/browser-manager-guest-policy-profile.test.ts
index 0c82f9515c3..f0752bda9de 100644
--- a/src/main/browser/browser-manager-guest-policy-profile.test.ts
+++ b/src/main/browser/browser-manager-guest-policy-profile.test.ts
@@ -41,6 +41,8 @@ type GuestFake = {
   windowOpenHandler: ((details: { url: string; frameName: string }) => unknown) | null
   webRtcPolicy: string | null
   isDestroyed: () => boolean
+  isCurrentlyAudible: () => boolean
+  send: ReturnType<typeof vi.fn>
   isFocused: () => boolean
   getURL: () => string
   getType: () => string
@@ -68,6 +70,8 @@ function createGuest(id: number, url: string): GuestFake {
     windowOpenHandler: null,
     webRtcPolicy: null,
     isDestroyed: () => false,
+    isCurrentlyAudible: () => false,
+    send: vi.fn(),
     isFocused: () => true,
     getURL: () => guest.url,
     getType: () => 'webview',
diff --git a/src/main/browser/browser-manager-guest-policy.ts b/src/main/browser/browser-manager-guest-policy.ts
index 5e19993ee3d..fa180413694 100644
--- a/src/main/browser/browser-manager-guest-policy.ts
+++ b/src/main/browser/browser-manager-guest-policy.ts
@@ -31,6 +31,15 @@ export abstract class BrowserManagerGuestPolicy extends BrowserManagerGuestClean
     guest.setBackgroundThrottling(false)
     const disposePopupPolicy = this.installGuestPopupPolicy(guest)
     const disposeNavigationPolicy = this.installGuestNavigationPolicy(guest)
+    const forwardAudioState = (
+      event: Electron.Event<Electron.WebContentsAudioStateChangedEventParams>
+    ): void => {
+      const browserPageId = this.tabIdByWebContentsId.get(guest.id)
+      if (browserPageId) {
+        this.notifyAudioStateChanged(browserPageId, event.audible)
+      }
+    }
+    guest.on('audio-state-changed', forwardAudioState)
     const disposeDevToolsWindow = installGuestDevToolsWindowBehavior({
       guest,
       getKeybindings: () => this.settingsResolver?.().keybindings,
@@ -45,6 +54,16 @@ export abstract class BrowserManagerGuestPolicy extends BrowserManagerGuestClean
       disposePopupPolicy()
       disposeNavigationPolicy()
       disposeDevToolsWindow()
+      if (!guest.isDestroyed()) {
+        guest.off('audio-state-changed', forwardAudioState)
+      }
+    })
+  }
+
+  protected notifyAudioStateChanged(browserPageId: string, audible: boolean): void {
+    this.resolveRendererForBrowserTab(browserPageId)?.send('browser:audio-state-changed', {
+      browserPageId,
+      audible
     })
   }
 
diff --git a/src/main/browser/browser-manager-guest-shortcuts.test.ts b/src/main/browser/browser-manager-guest-shortcuts.test.ts
index 86ce9e84ab5..19bce4eed4a 100644
--- a/src/main/browser/browser-manager-guest-shortcuts.test.ts
+++ b/src/main/browser/browser-manager-guest-shortcuts.test.ts
@@ -70,6 +70,7 @@ describe('browserManager', () => {
     const guest = {
       id: 405,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -94,6 +95,8 @@ describe('browserManager', () => {
       webContentsId: guest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about shortcut forwarding.
+    rendererSendMock.mockClear()
 
     const beforeInputHandler = guestOnMock.mock.calls.findLast(
       ([event]) => event === 'before-input-event'
@@ -161,6 +164,7 @@ describe('browserManager', () => {
     const guest = {
       id: 406,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -185,6 +189,8 @@ describe('browserManager', () => {
       webContentsId: guest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about shortcut forwarding.
+    rendererSendMock.mockClear()
 
     const beforeInputHandler = guestOnMock.mock.calls.findLast(
       ([event]) => event === 'before-input-event'
@@ -332,6 +338,7 @@ describe('browserManager', () => {
     const guest = {
       id: 407,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -362,6 +369,8 @@ describe('browserManager', () => {
       webContentsId: guest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about shortcut forwarding.
+    rendererSendMock.mockClear()
 
     const beforeInputHandler = guestOnMock.mock.calls.findLast(
       ([event]) => event === 'before-input-event'
@@ -436,6 +445,7 @@ describe('browserManager', () => {
     const guest = {
       id: 407,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -460,6 +470,8 @@ describe('browserManager', () => {
       webContentsId: guest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about shortcut forwarding.
+    rendererSendMock.mockClear()
 
     const beforeInputHandler = guestOnMock.mock.calls.findLast(
       ([event]) => event === 'before-input-event'
@@ -506,6 +518,7 @@ describe('browserManager', () => {
     const guest = {
       id: 408,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-guest-visibility.test.ts b/src/main/browser/browser-manager-guest-visibility.test.ts
index 79025e907f3..e4d0eed4a5e 100644
--- a/src/main/browser/browser-manager-guest-visibility.test.ts
+++ b/src/main/browser/browser-manager-guest-visibility.test.ts
@@ -70,6 +70,7 @@ describe('browserManager', () => {
     const guest = {
       id: 1707,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -102,6 +103,8 @@ describe('browserManager', () => {
       webContentsId: guest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about paint holds.
+    renderer.send.mockClear()
 
     // Synchronous: a capture never waits on the desktop renderer.
     const releaseFirst = browserManager.holdPaintForCapture(guest.id)
diff --git a/src/main/browser/browser-manager-load-failure-replay.test.ts b/src/main/browser/browser-manager-load-failure-replay.test.ts
index c74c53b1c4e..b2946221591 100644
--- a/src/main/browser/browser-manager-load-failure-replay.test.ts
+++ b/src/main/browser/browser-manager-load-failure-replay.test.ts
@@ -80,6 +80,7 @@ describe('browserManager', () => {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'window'),
       setBackgroundThrottling: vi.fn(),
+      isCurrentlyAudible: vi.fn(() => false),
       setWindowOpenHandler: vi.fn(),
       on: vi.fn(),
       off: vi.fn(),
@@ -119,6 +120,7 @@ describe('browserManager', () => {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
+      isCurrentlyAudible: vi.fn(() => false),
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
       off: guestOffMock,
@@ -165,7 +167,9 @@ describe('browserManager', () => {
       rendererWebContentsId
     })
 
-    expect(rendererSendMock).toHaveBeenCalledTimes(1)
+    expect(
+      rendererSendMock.mock.calls.filter(([channel]) => channel === 'browser:guest-load-failed')
+    ).toHaveLength(1)
     expect(rendererSendMock).toHaveBeenCalledWith('browser:guest-load-failed', {
       browserPageId: 'browser-1',
       loadError: {
@@ -196,6 +200,7 @@ describe('browserManager', () => {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
+      isCurrentlyAudible: vi.fn(() => false),
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
       off: guestOffMock,
@@ -248,6 +253,7 @@ describe('browserManager', () => {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
+      isCurrentlyAudible: vi.fn(() => false),
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
       off: guestOffMock,
@@ -291,6 +297,7 @@ describe('browserManager', () => {
       isDestroyed: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
+      isCurrentlyAudible: vi.fn(() => false),
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
       on: guestOnMock,
       off: guestOffMock,
diff --git a/src/main/browser/browser-manager-page-prompt-routing.test.ts b/src/main/browser/browser-manager-page-prompt-routing.test.ts
index af7a0f4427e..f7e2790b72c 100644
--- a/src/main/browser/browser-manager-page-prompt-routing.test.ts
+++ b/src/main/browser/browser-manager-page-prompt-routing.test.ts
@@ -71,6 +71,7 @@ describe('browserManager page prompt routing', () => {
     const guest = {
       id: 107,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       getURL: vi.fn(() => 'https://trusted.example/home'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
@@ -162,6 +163,7 @@ describe('browserManager page prompt routing', () => {
     const guest = {
       id: 108,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -206,6 +208,7 @@ describe('browserManager page prompt routing', () => {
     const guest = {
       id: 109,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       getURL: vi.fn(() => ''),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
diff --git a/src/main/browser/browser-manager-popup-child.test.ts b/src/main/browser/browser-manager-popup-child.test.ts
index bf4caf2b0ba..9807e9c3e71 100644
--- a/src/main/browser/browser-manager-popup-child.test.ts
+++ b/src/main/browser/browser-manager-popup-child.test.ts
@@ -68,6 +68,7 @@ describe('browserManager popup child policies', () => {
     const childGuest = {
       id: 4040,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: childSetBackgroundThrottlingMock,
       setWindowOpenHandler: childSetWindowOpenHandlerMock,
@@ -78,6 +79,7 @@ describe('browserManager popup child policies', () => {
     const guest = {
       id: 404,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-popup-openerless-tab.test.ts b/src/main/browser/browser-manager-popup-openerless-tab.test.ts
index 81823d16090..2708af73b55 100644
--- a/src/main/browser/browser-manager-popup-openerless-tab.test.ts
+++ b/src/main/browser/browser-manager-popup-openerless-tab.test.ts
@@ -82,6 +82,7 @@ function attachClickedGuest(): WindowOpenHandler {
     id: 2200,
     session: guestSession,
     isDestroyed: vi.fn(() => false),
+    isCurrentlyAudible: vi.fn(() => false),
     getType: vi.fn(() => 'webview'),
     setBackgroundThrottling: vi.fn(),
     setWindowOpenHandler: guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-popup-routing.test.ts b/src/main/browser/browser-manager-popup-routing.test.ts
index c03cc015cae..aa79cae268f 100644
--- a/src/main/browser/browser-manager-popup-routing.test.ts
+++ b/src/main/browser/browser-manager-popup-routing.test.ts
@@ -76,6 +76,7 @@ describe('browserManager', () => {
   it('validates popup URLs before opening externally', () => {
     const guest = {
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -109,6 +110,7 @@ describe('browserManager', () => {
     const guest = {
       id: 103,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -133,6 +135,8 @@ describe('browserManager', () => {
       webContentsId: guest.id,
       rendererWebContentsId
     })
+    // Registration also reports audio state; this test is about popup routing.
+    rendererSendMock.mockClear()
 
     const handler = guestSetWindowOpenHandlerMock.mock.calls[0][0] as (details: {
       url: string
@@ -184,6 +188,8 @@ describe('browserManager', () => {
     const guest = {
       id: 140,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -249,6 +255,7 @@ describe('browserManager', () => {
     const guest = {
       id: 142,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -325,6 +332,7 @@ describe('browserManager', () => {
     const guest = {
       id: 143,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -384,6 +392,7 @@ describe('browserManager', () => {
     const guest = {
       id: 144,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -470,6 +479,7 @@ describe('browserManager', () => {
     const guest = {
       id: 150,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -510,6 +520,7 @@ describe('browserManager', () => {
       const child = {
         id: 1500 + index,
         isDestroyed: vi.fn(() => false),
+        isCurrentlyAudible: vi.fn(() => false),
         getType: vi.fn(() => 'webview'),
         setBackgroundThrottling: vi.fn(),
         setWindowOpenHandler: childSetWindowOpenHandlerMock,
@@ -569,6 +580,7 @@ describe('browserManager', () => {
       session: { marker: 'synthetic-opener-session' },
       id: 150,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -670,6 +682,7 @@ describe('browserManager', () => {
     const guest = {
       id: 106,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -719,6 +732,7 @@ describe('browserManager', () => {
     const guest = {
       id: 105,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
@@ -744,6 +758,7 @@ describe('browserManager', () => {
     const guest = {
       id: 104,
       isDestroyed: vi.fn(() => false),
+      isCurrentlyAudible: vi.fn(() => false),
       getType: vi.fn(() => 'webview'),
       setBackgroundThrottling: guestSetBackgroundThrottlingMock,
       setWindowOpenHandler: guestSetWindowOpenHandlerMock,
diff --git a/src/main/browser/browser-manager-registration.ts b/src/main/browser/browser-manager-registration.ts
index 9b3037e7f7d..402a390f2c9 100644
--- a/src/main/browser/browser-manager-registration.ts
+++ b/src/main/browser/browser-manager-registration.ts
@@ -72,6 +72,8 @@ export abstract class BrowserManagerRegistration extends BrowserManagerGuestPoli
     }
     this.certificateTrustController?.onGuestRegistered(webContentsId, browserTabId)
     this.siteDisplayController?.onGuestRegistered(guest, sessionProfileId ?? null)
+    // Earlier audio events had no page; this report also cues the renderer to re-apply a tab's mute.
+    this.notifyAudioStateChanged(browserTabId, guest.isCurrentlyAudible())
 
     this.setupContextMenu(browserTabId, guest)
     this.setupGrabShortcut(browserTabId, guest)
@@ -99,6 +101,7 @@ export abstract class BrowserManagerRegistration extends BrowserManagerGuestPoli
     // Resolve pending grabs before removing their registration.
     this.cancelGrabOp(browserTabId, 'evicted')
     cancelBrowserPagePrompts(browserTabId)
+    this.notifyAudioStateChanged(browserTabId, false)
 
     const guestWebContentsId = this.webContentsIdByTabId.get(browserTabId)
     if (guestWebContentsId !== undefined) {
diff --git a/src/main/browser/browser-manager-viewport-test-fixtures.ts b/src/main/browser/browser-manager-viewport-test-fixtures.ts
index 0ffd5634206..80474805203 100644
--- a/src/main/browser/browser-manager-viewport-test-fixtures.ts
+++ b/src/main/browser/browser-manager-viewport-test-fixtures.ts
@@ -79,6 +79,8 @@ export function createViewportGuestFactory(
       id,
       isDestroyed: vi.fn(() => false),
       isCrashed: vi.fn(() => rendererCrashed),
+      isCurrentlyAudible: vi.fn(() => false),
+      send: vi.fn(),
       getType: vi.fn(() => 'webview'),
       getURL: vi.fn(() => committedUrl),
       getUserAgent: vi.fn(() => currentUa),
diff --git a/src/main/browser/cdp-bridge-integration.test.ts b/src/main/browser/cdp-bridge-integration.test.ts
index a4fc69fd9fc..84e23ccba2d 100644
--- a/src/main/browser/cdp-bridge-integration.test.ts
+++ b/src/main/browser/cdp-bridge-integration.test.ts
@@ -184,6 +184,7 @@ function createMockGuest(
   const guest = {
     id,
     isDestroyed: vi.fn(() => false),
+    isCurrentlyAudible: vi.fn(() => false),
     getType: vi.fn(() => 'webview'),
     getURL: vi.fn(() => currentUrl),
     getTitle: vi.fn(() => currentTitle),
diff --git a/src/main/ipc/browser-guest-view-ipc.ts b/src/main/ipc/browser-guest-view-ipc.ts
index a5c628e289d..0245d4506e5 100644
--- a/src/main/ipc/browser-guest-view-ipc.ts
+++ b/src/main/ipc/browser-guest-view-ipc.ts
@@ -44,6 +44,7 @@ export function registerBrowserGuestViewHandlers(): void {
   ipcMain.removeHandler('browser:getPageSiteDisplay')
   ipcMain.removeHandler('browser:zoomPage')
   ipcMain.removeHandler('browser:setPageSiteColorScheme')
+  ipcMain.removeHandler('browser:setPageAudioMuted')
 
   // Page/session operations exclude document previews.
   const pageGuestId = (event: IpcMainInvokeEvent, browserPageId: unknown): number | null =>
@@ -95,6 +96,18 @@ export function registerBrowserGuestViewHandlers(): void {
     }
   )
 
+  ipcMain.handle(
+    'browser:setPageAudioMuted',
+    (event, args: { browserPageId: string; muted: unknown }): boolean => {
+      const guest = pageGuest(event, args?.browserPageId)
+      if (!guest || typeof args.muted !== 'boolean') {
+        return false
+      }
+      guest.setAudioMuted(args.muted)
+      return true
+    }
+  )
+
   ipcMain.handle(
     'browser:openDevTools',
     (event, args: { browserPageId: string; inspectAt?: unknown }) => {
diff --git a/src/main/ipc/browser-preview-tool-authorization.test.ts b/src/main/ipc/browser-preview-tool-authorization.test.ts
index 2602c755cf2..5ca63a99ba9 100644
--- a/src/main/ipc/browser-preview-tool-authorization.test.ts
+++ b/src/main/ipc/browser-preview-tool-authorization.test.ts
@@ -128,6 +128,7 @@ const BROWSER_PAGE_CHANNELS = [
   'browser:setViewportOverride',
   'browser:getPageSiteDisplay',
   'browser:zoomPage',
+  'browser:setPageAudioMuted',
   'browser:setPageSiteColorScheme',
   'browser:publishClientPageMetadata',
   'browser:cancelDownload',
diff --git a/src/preload/api/browser-api.ts b/src/preload/api/browser-api.ts
index a7067f5c001..9e8aef7d8dd 100644
--- a/src/preload/api/browser-api.ts
+++ b/src/preload/api/browser-api.ts
@@ -122,6 +122,7 @@ export type BrowserApi = {
     browserPageId: string
     colorScheme: BrowserSiteColorScheme | null
   }) => Promise<BrowserPageSiteDisplay | null>
+  setPageAudioMuted: (args: { browserPageId: string; muted: boolean }) => Promise<boolean>
   reportViewportScrollState?: (args: {
     browserPageId: string
     state: BrowserViewportScrollState
@@ -138,6 +139,9 @@ export type BrowserApi = {
   onCertificateFailureChanged: (
     callback: (event: { browserPageId: string; failure: BrowserCertificateFailure | null }) => void
   ) => () => void
+  onAudioStateChanged: (
+    callback: (event: { browserPageId: string; audible: boolean }) => void
+  ) => () => void
   proceedCertificate: (args: {
     browserPageId: string
     challengeId: string
diff --git a/src/preload/api/browser-bridge-guest-registration-and-downloads.ts b/src/preload/api/browser-bridge-guest-registration-and-downloads.ts
index 08a0f06fbb7..fb077ec8ca7 100644
--- a/src/preload/api/browser-bridge-guest-registration-and-downloads.ts
+++ b/src/preload/api/browser-bridge-guest-registration-and-downloads.ts
@@ -98,6 +98,8 @@ export const browserGuestRegistrationAndDownloadsApi = {
     colorScheme: BrowserSiteColorScheme | null
   }): Promise<BrowserPageSiteDisplay | null> =>
     ipcRenderer.invoke('browser:setPageSiteColorScheme', args),
+  setPageAudioMuted: (args: { browserPageId: string; muted: boolean }): Promise<boolean> =>
+    ipcRenderer.invoke('browser:setPageAudioMuted', args),
   reportViewportScrollState: (args: {
     browserPageId: string
     state: {
@@ -135,6 +137,14 @@ export const browserGuestRegistrationAndDownloadsApi = {
     ipcRenderer.on('browser:certificate-failure-changed', listener)
     return () => ipcRenderer.removeListener('browser:certificate-failure-changed', listener)
   },
+  onAudioStateChanged: (callback): (() => void) => {
+    const listener = (
+      _event: Electron.IpcRendererEvent,
+      data: Parameters<typeof callback>[0]
+    ): void => callback(data)
+    ipcRenderer.on('browser:audio-state-changed', listener)
+    return () => ipcRenderer.removeListener('browser:audio-state-changed', listener)
+  },
   proceedCertificate: (args) => ipcRenderer.invoke('browser:proceedCertificate', args),
   onPermissionDenied: (
     callback: (event: { browserPageId: string; permission: string; origin: string }) => void
diff --git a/src/renderer/src/components/tab-bar/BrowserTab.test.tsx b/src/renderer/src/components/tab-bar/BrowserTab.test.tsx
index 929770867a9..a0f10222ec8 100644
--- a/src/renderer/src/components/tab-bar/BrowserTab.test.tsx
+++ b/src/renderer/src/components/tab-bar/BrowserTab.test.tsx
@@ -2,12 +2,27 @@ import type * as ReactModule from 'react'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 import { isValidElement } from 'react'
 import type { BrowserTab as BrowserTabState } from '../../../../shared/browser-workspace-types'
+import type * as StoreModule from '@/store'
 
 const reactHookRuntime = vi.hoisted(() => ({
   states: [] as unknown[],
   index: 0
 }))
 
+// Why: the shallow harness has no React dispatcher, so the store hook reads state directly.
+vi.mock('@/store', async () => {
+  const actual = await vi.importActual<typeof StoreModule>('@/store')
+  const store = actual.useAppStore
+  return {
+    ...actual,
+    useAppStore: Object.assign(
+      <T,>(selector: (state: ReturnType<typeof store.getState>) => T): T =>
+        selector(store.getState()),
+      store
+    )
+  }
+})
+
 vi.mock('react', async () => {
   const actual = await vi.importActual<typeof ReactModule>('react')
   return {
@@ -90,6 +105,12 @@ vi.mock('lucide-react', () => ({
   Rows2: function Rows2(props: Record<string, unknown>) {
     return { type: 'Rows2', props }
   },
+  Volume2: function Volume2(props: Record<string, unknown>) {
+    return { type: 'Volume2', props }
+  },
+  VolumeX: function VolumeX(props: Record<string, unknown>) {
+    return { type: 'VolumeX', props }
+  },
   X: function X(props: Record<string, unknown>) {
     return { type: 'X', props }
   }
diff --git a/src/renderer/src/components/tab-bar/BrowserTab.tsx b/src/renderer/src/components/tab-bar/BrowserTab.tsx
index 54e62826aa4..5f476cd08c2 100644
--- a/src/renderer/src/components/tab-bar/BrowserTab.tsx
+++ b/src/renderer/src/components/tab-bar/BrowserTab.tsx
@@ -1,6 +1,6 @@
 import { useEffect, useState } from 'react'
 import { useSortable } from '@dnd-kit/sortable'
-import { X, ExternalLink, Copy, CopyX, Pin, PinOff } from 'lucide-react'
+import { X, ExternalLink, Copy, CopyX, Pin, PinOff, Volume2, VolumeX } from 'lucide-react'
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -33,6 +33,7 @@ import { cn } from '@/lib/utils'
 import { BrowserFavicon } from '@/components/browser-favicon'
 import { CopyTabIdMenuItem } from './CopyTabIdMenuItem'
 import { CloseSplitPaneMenuItem } from './CloseSplitPaneMenuItem'
+import { useAppStore } from '@/store'
 
 export function formatBrowserTabUrlLabel(url: string): string {
   if (url === ORCA_BROWSER_BLANK_URL || url === 'about:blank') {
@@ -117,6 +118,16 @@ export default function BrowserTab({
     // invalid URL — leave disabled
   }
   const tabLabel = getBrowserTabLabel(tab)
+  const audible = useAppStore((s) =>
+    (s.browserPagesByWorkspace[tab.id] ?? []).some((page) => s.browserAudiblePageIds[page.id])
+  )
+  const audioMuted = useAppStore((s) => Boolean(s.browserAudioMutedTabIds[tab.id]))
+  // Why: a muted tab keeps its icon after sound stops, so it can be unmuted from the strip.
+  const showAudioControl = audible || audioMuted
+  const setBrowserTabAudioMuted = useAppStore((s) => s.setBrowserTabAudioMuted)
+  const toggleAudioMutedLabel = audioMuted
+    ? translate('components.tab.bar.BrowserTab.unmuteTab', 'Unmute Tab')
+    : translate('components.tab.bar.BrowserTab.muteTab', 'Mute Tab')
 
   useEffect(() => {
     const closeMenu = (): void => setMenuOpen(false)
@@ -191,6 +202,21 @@ export default function BrowserTab({
       />
       {isPinned && <Pin className="mr-1 size-3 shrink-0 text-muted-foreground" aria-hidden />}
       <span className={`${TAB_LABEL_WIDTH_CLASSES} mr-1`}>{tabLabel}</span>
+      {showAudioControl && (
+        // Why: unlike close, stays visible on inactive tabs; finding the playing tab is the point.
+        <button
+          type="button"
+          aria-label={toggleAudioMutedLabel}
+          className="flex items-center justify-center w-4 h-4 rounded-sm shrink-0 text-muted-foreground hover:text-foreground hover:bg-muted"
+          onPointerDown={(e) => e.stopPropagation()}
+          onClick={(e) => {
+            e.stopPropagation()
+            setBrowserTabAudioMuted(tab.id, !audioMuted)
+          }}
+        >
+          {audioMuted ? <VolumeX className="size-3" /> : <Volume2 className="size-3" />}
+        </button>
+      )}
       {!isPinned && (
         <button
           className={`flex items-center justify-center w-4 h-4 rounded-sm shrink-0 ${
@@ -275,6 +301,12 @@ export default function BrowserTab({
               ? translate('auto.components.tab.bar.BrowserTab.c5aaee8c39', 'Unpin Tab')
               : translate('auto.components.tab.bar.BrowserTab.911542656f', 'Pin Tab')}
           </DropdownMenuItem>
+          {showAudioControl ? (
+            <DropdownMenuItem onSelect={() => setBrowserTabAudioMuted(tab.id, !audioMuted)}>
+              {audioMuted ? <Volume2 className="size-3.5" /> : <VolumeX className="size-3.5" />}
+              {toggleAudioMutedLabel}
+            </DropdownMenuItem>
+          ) : null}
           <CopyTabIdMenuItem unifiedTabId={dragData.unifiedTabId} />
           <DropdownMenuSeparator />
           <DropdownMenuItem onSelect={() => !isPinned && onClose()} disabled={isPinned}>
diff --git a/src/renderer/src/components/tab-bar/tab-title-tooltip.test.tsx b/src/renderer/src/components/tab-bar/tab-title-tooltip.test.tsx
index 273d4502972..95104b16507 100644
--- a/src/renderer/src/components/tab-bar/tab-title-tooltip.test.tsx
+++ b/src/renderer/src/components/tab-bar/tab-title-tooltip.test.tsx
@@ -110,13 +110,21 @@ vi.mock('@/store', () => ({
       settings: null
       unreadTerminalTabs: Record<string, boolean>
       agentStatusByPaneKey: Record<string, never>
+      browserPagesByWorkspace: Record<string, never>
+      browserAudiblePageIds: Record<string, never>
+      browserAudioMutedTabIds: Record<string, never>
+      setBrowserTabAudioMuted: () => void
     }) => unknown
   ) =>
     selector({
       openMarkdownPreview: vi.fn(),
       settings: null,
       unreadTerminalTabs: {},
-      agentStatusByPaneKey: {}
+      agentStatusByPaneKey: {},
+      browserPagesByWorkspace: {},
+      browserAudiblePageIds: {},
+      browserAudioMutedTabIds: {},
+      setBrowserTabAudioMuted: vi.fn()
     })
 }))
 
diff --git a/src/renderer/src/hooks/ipc-events-test-harness.ts b/src/renderer/src/hooks/ipc-events-test-harness.ts
index 915055d3ad5..57b44233367 100644
--- a/src/renderer/src/hooks/ipc-events-test-harness.ts
+++ b/src/renderer/src/hooks/ipc-events-test-harness.ts
@@ -76,6 +76,8 @@ export type IpcEventsHarnessOptions = {
   clientHostedBrowserRowsSnapshot?: ClientHostedBrowserRowsEvent[]
   /** Rejects the hydration round trip instead of resolving it. */
   clientHostedBrowserRowsSnapshotError?: Error
+  /** Extra `window.api.browser` members, e.g. a listener capture for a channel under test. */
+  browserApi?: Record<string, unknown>
 }
 
 /**
@@ -233,6 +235,7 @@ export async function loadIpcEventsHarness(
           onClearDismissal: () => () => {}
         },
         browser: createApiNamespaceStub({
+          ...options.browserApi,
           onNavigationUpdate: (
             listener: (event: { browserPageId: string; url: string; title: string }) => void
           ) => {
diff --git a/src/renderer/src/hooks/ipc-events/browser-state-ipc-bridge.ts b/src/renderer/src/hooks/ipc-events/browser-state-ipc-bridge.ts
index dc792c258d8..fdf2455ea67 100644
--- a/src/renderer/src/hooks/ipc-events/browser-state-ipc-bridge.ts
+++ b/src/renderer/src/hooks/ipc-events/browser-state-ipc-bridge.ts
@@ -4,6 +4,7 @@ import { openUrlInTabBesideBrowserPage } from '@/lib/browser-page-tab-opening'
 import { redactKagiSessionToken } from '../../../../shared/browser-url'
 import { LOCAL_EXECUTION_HOST_ID } from '../../../../shared/execution-host'
 import { useAppStore } from '../../store'
+import { findPage } from '../../store/slices/browser-page-records'
 import {
   acquireBrowserAutomationVisibility,
   releaseBrowserAutomationVisibility
@@ -62,6 +63,21 @@ export function registerBrowserStateIpcBridge(
   if (unsubscribeCertificateFailure) {
     unsubs.push(unsubscribeCertificateFailure)
   }
+  // Why no runtime guard: only guests in this process report, and streamed pages have none here.
+  const unsubscribeAudioState = window.api.browser.onAudioStateChanged?.(
+    ({ browserPageId, audible }) => {
+      const store = useAppStore.getState()
+      store.setBrowserPageAudible(browserPageId, audible)
+      // Why: main reports each newly registered guest, and a new guest (eviction, crash) starts unmuted.
+      const tabId = findPage(store.browserPagesByWorkspace, browserPageId)?.workspaceId
+      if (tabId && store.browserAudioMutedTabIds[tabId]) {
+        void window.api.browser.setPageAudioMuted({ browserPageId, muted: true })
+      }
+    }
+  )
+  if (unsubscribeAudioState) {
+    unsubs.push(unsubscribeAudioState)
+  }
   unsubs.push(
     window.api.browser.onNavigationUpdate(({ browserPageId, url, title }) => {
       if (isRuntimeEnvironmentActive()) {
diff --git a/src/renderer/src/hooks/useIpcEvents-browser-certificate-failure.test.ts b/src/renderer/src/hooks/useIpcEvents-browser-certificate-failure.test.ts
index ef9d571bf6e..a6295a58047 100644
--- a/src/renderer/src/hooks/useIpcEvents-browser-certificate-failure.test.ts
+++ b/src/renderer/src/hooks/useIpcEvents-browser-certificate-failure.test.ts
@@ -74,6 +74,54 @@ describe('browser certificate failures while a runtime environment is active', (
   })
 })
 
+type AudioStateEvent = { browserPageId: string; audible: boolean }
+
+// A rebuilt guest (eviction, crash recovery, client-hosted rebind) starts unmuted; main's
+// registration report is the renderer's only cue to carry the tab's mute over to it. Local pages
+// (e.g. floating browser tabs) still report while a remote environment is active.
+describe('browser audio state', () => {
+  it('re-applies a muted tab to each reporting page, even with a remote environment active', async () => {
+    const setBrowserPageAudible = vi.fn()
+    const setPageAudioMuted = vi.fn(() => Promise.resolve(true))
+    let audioStateChanged: (event: AudioStateEvent) => void = () => {}
+    const harness = await loadIpcEventsHarness(
+      createHarnessStoreState({
+        tabsByWorktree: {},
+        remoteBrowserPageHandlesByPageId: {},
+        browserPagesByWorkspace: {
+          'tab-muted': [{ id: 'page-muted', workspaceId: 'tab-muted' }],
+          'tab-loud': [{ id: 'page-loud', workspaceId: 'tab-loud' }]
+        },
+        browserAudioMutedTabIds: { 'tab-muted': true },
+        setBrowserPageAudible,
+        settings: {
+          terminalFontSize: 13,
+          experimentalNativeChat: false,
+          activeRuntimeEnvironmentId: 'env-a'
+        }
+      }),
+      {
+        browserApi: {
+          onAudioStateChanged: (listener: (event: AudioStateEvent) => void) => {
+            audioStateChanged = listener
+            return () => {}
+          },
+          setPageAudioMuted
+        }
+      }
+    )
+    harness.useIpcEvents()
+
+    audioStateChanged({ browserPageId: 'page-muted', audible: false })
+    audioStateChanged({ browserPageId: 'page-loud', audible: true })
+
+    expect(setBrowserPageAudible).toHaveBeenCalledWith('page-muted', false)
+    expect(setBrowserPageAudible).toHaveBeenCalledWith('page-loud', true)
+    expect(setPageAudioMuted).toHaveBeenCalledTimes(1)
+    expect(setPageAudioMuted).toHaveBeenCalledWith({ browserPageId: 'page-muted', muted: true })
+  })
+})
+
 function storeStateWithRuntime(
   setBrowserPageCertificateFailure: ReturnType<typeof vi.fn>,
   remoteBrowserPageHandlesByPageId: Record<string, unknown>
diff --git a/src/renderer/src/i18n/locales/en.json b/src/renderer/src/i18n/locales/en.json
index bb835618fae..704dcee8aa9 100644
--- a/src/renderer/src/i18n/locales/en.json
+++ b/src/renderer/src/i18n/locales/en.json
@@ -19702,7 +19702,9 @@
           "switchToChatView": "Continue in Chat UI"
         },
         "BrowserTab": {
-          "closeOthers": "Close Others"
+          "closeOthers": "Close Others",
+          "muteTab": "Mute Tab",
+          "unmuteTab": "Unmute Tab"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "Close Others"
diff --git a/src/renderer/src/i18n/locales/es.json b/src/renderer/src/i18n/locales/es.json
index 97f5c99a51c..be7dc3082f8 100644
--- a/src/renderer/src/i18n/locales/es.json
+++ b/src/renderer/src/i18n/locales/es.json
@@ -19373,7 +19373,9 @@
           "switchToChatView": "Continuar en la interfaz de chat"
         },
         "BrowserTab": {
-          "closeOthers": "Cerrar otras"
+          "closeOthers": "Cerrar otras",
+          "muteTab": "Silenciar pestaña",
+          "unmuteTab": "Reactivar sonido de la pestaña"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "Cerrar otras"
diff --git a/src/renderer/src/i18n/locales/fr.json b/src/renderer/src/i18n/locales/fr.json
index e3f33dc5ca5..04cd2886a9b 100644
--- a/src/renderer/src/i18n/locales/fr.json
+++ b/src/renderer/src/i18n/locales/fr.json
@@ -19513,7 +19513,9 @@
           "switchToChatView": "Continuer dans l’interface de chat"
         },
         "BrowserTab": {
-          "closeOthers": "Fermer les autres"
+          "closeOthers": "Fermer les autres",
+          "muteTab": "Couper le son de l'onglet",
+          "unmuteTab": "Réactiver le son de l'onglet"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "Fermer les autres"
diff --git a/src/renderer/src/i18n/locales/ja.json b/src/renderer/src/i18n/locales/ja.json
index 5d8e241faf0..edb0bc27cd0 100644
--- a/src/renderer/src/i18n/locales/ja.json
+++ b/src/renderer/src/i18n/locales/ja.json
@@ -19407,7 +19407,9 @@
           "switchToChatView": "チャット UI で続ける"
         },
         "BrowserTab": {
-          "closeOthers": "その他を閉じる"
+          "closeOthers": "その他を閉じる",
+          "muteTab": "タブをミュート",
+          "unmuteTab": "タブのミュートを解除"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "その他を閉じる"
diff --git a/src/renderer/src/i18n/locales/ko.json b/src/renderer/src/i18n/locales/ko.json
index 12aabd61e15..30237340186 100644
--- a/src/renderer/src/i18n/locales/ko.json
+++ b/src/renderer/src/i18n/locales/ko.json
@@ -19407,7 +19407,9 @@
           "switchToChatView": "채팅 UI에서 계속하기"
         },
         "BrowserTab": {
-          "closeOthers": "다른 탭 닫기"
+          "closeOthers": "다른 탭 닫기",
+          "muteTab": "탭 음소거",
+          "unmuteTab": "탭 음소거 해제"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "다른 탭 닫기"
diff --git a/src/renderer/src/i18n/locales/pt.json b/src/renderer/src/i18n/locales/pt.json
index 6d95c0d78cd..96b2ab8d3ab 100644
--- a/src/renderer/src/i18n/locales/pt.json
+++ b/src/renderer/src/i18n/locales/pt.json
@@ -19936,7 +19936,9 @@
           "switchToChatView": "Alternar para visualização de chat"
         },
         "BrowserTab": {
-          "closeOthers": "Fechar Outras"
+          "closeOthers": "Fechar Outras",
+          "muteTab": "Silenciar Aba",
+          "unmuteTab": "Reativar Som da Aba"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "Fechar Outras"
diff --git a/src/renderer/src/i18n/locales/zh.json b/src/renderer/src/i18n/locales/zh.json
index 9f887e277b6..625620d7b2f 100644
--- a/src/renderer/src/i18n/locales/zh.json
+++ b/src/renderer/src/i18n/locales/zh.json
@@ -19372,7 +19372,9 @@
           "switchToChatView": "在聊天界面中继续"
         },
         "BrowserTab": {
-          "closeOthers": "关闭其他"
+          "closeOthers": "关闭其他",
+          "muteTab": "静音标签",
+          "unmuteTab": "取消静音标签"
         },
         "EditorFileTabContextMenu": {
           "closeOthers": "关闭其他"
diff --git a/src/renderer/src/store/slices/browser/browser-audio-actions.ts b/src/renderer/src/store/slices/browser/browser-audio-actions.ts
new file mode 100644
index 00000000000..39e083794aa
--- /dev/null
+++ b/src/renderer/src/store/slices/browser/browser-audio-actions.ts
@@ -0,0 +1,38 @@
+import type { BrowserSlice, BrowserSliceGet, BrowserSliceSet } from './browser-slice-contract'
+import { omitRecordKeys } from '../worktrees/teardown/record-key-omission'
+
+export function createBrowserAudioActions(
+  set: BrowserSliceSet,
+  get: BrowserSliceGet
+): Pick<BrowserSlice, 'setBrowserPageAudible' | 'setBrowserTabAudioMuted'> {
+  return {
+    setBrowserPageAudible: (pageId, audible) => {
+      set((s) => {
+        if (audible === Boolean(s.browserAudiblePageIds[pageId])) {
+          return s
+        }
+        return {
+          browserAudiblePageIds: audible
+            ? { ...s.browserAudiblePageIds, [pageId]: true }
+            : omitRecordKeys(s.browserAudiblePageIds, [pageId])
+        }
+      })
+    },
+
+    setBrowserTabAudioMuted: (tabId, muted) => {
+      set((s) => {
+        if (muted === Boolean(s.browserAudioMutedTabIds[tabId])) {
+          return s
+        }
+        return {
+          browserAudioMutedTabIds: muted
+            ? { ...s.browserAudioMutedTabIds, [tabId]: true }
+            : omitRecordKeys(s.browserAudioMutedTabIds, [tabId])
+        }
+      })
+      for (const page of get().browserPagesByWorkspace[tabId] ?? []) {
+        void window.api.browser.setPageAudioMuted({ browserPageId: page.id, muted })
+      }
+    }
+  }
+}
diff --git a/src/renderer/src/store/slices/browser/browser-close-actions.ts b/src/renderer/src/store/slices/browser/browser-close-actions.ts
index 4a0afa8a575..1c566b291a2 100644
--- a/src/renderer/src/store/slices/browser/browser-close-actions.ts
+++ b/src/renderer/src/store/slices/browser/browser-close-actions.ts
@@ -186,6 +186,7 @@ export function createBrowserCloseActions(
             recentlyClosedBrowserPagesByWorkspace: nextRecentlyClosedBrowserPagesByWorkspace,
             remoteBrowserPageHandlesByPageId: nextRemoteBrowserPageHandlesByPageId,
             browserCertificateFailuresByPageId: nextBrowserCertificateFailuresByPageId,
+            browserAudioMutedTabIds: omitRecordKeys(s.browserAudioMutedTabIds, [tabId]),
             browserAnnotationsByPageId: nextBrowserAnnotationsByPageId,
             browserAnnotationMarkerIdsByPageId: nextBrowserAnnotationMarkerIdsByPageId
           }
diff --git a/src/renderer/src/store/slices/browser/browser-slice-contract.ts b/src/renderer/src/store/slices/browser/browser-slice-contract.ts
index 0ee75099f28..2e0d0ad92cd 100644
--- a/src/renderer/src/store/slices/browser/browser-slice-contract.ts
+++ b/src/renderer/src/store/slices/browser/browser-slice-contract.ts
@@ -123,6 +123,10 @@ export type BrowserSlice = {
   browserTabsByWorktree: Record<string, BrowserWorkspace[]>
   browserPagesByWorkspace: Record<string, BrowserPage[]>
   browserCertificateFailuresByPageId: Record<string, BrowserCertificateFailure>
+  /** May precede the page record (client-hosted pages); main's false on guest teardown clears it. */
+  browserAudiblePageIds: Record<string, true>
+  /** Tab mute lives for the tab's life; each new guest of its pages is muted again. */
+  browserAudioMutedTabIds: Record<string, true>
   browserAnnotationsByPageId: Record<string, BrowserPageAnnotation[]>
   browserAnnotationMarkerIdsByPageId: Record<string, string[]>
   remoteBrowserPageHandlesByPageId: Record<string, RemoteBrowserPageHandle>
@@ -198,6 +202,8 @@ export type BrowserSlice = {
     pageId: string,
     failure: BrowserCertificateFailure | null
   ) => void
+  setBrowserPageAudible: (pageId: string, audible: boolean) => void
+  setBrowserTabAudioMuted: (tabId: string, muted: boolean) => void
   setBrowserTabUrl: (pageId: string, url: string) => void
   setBrowserPageUrl: (pageId: string, url: string, options?: SetBrowserPageUrlOptions) => void
   setRemoteBrowserPageHandle: (pageId: string, handle: RemoteBrowserPageHandle) => void
diff --git a/src/renderer/src/store/slices/browser/create-browser-slice.ts b/src/renderer/src/store/slices/browser/create-browser-slice.ts
index e33df5349c2..df8517bab7b 100644
--- a/src/renderer/src/store/slices/browser/create-browser-slice.ts
+++ b/src/renderer/src/store/slices/browser/create-browser-slice.ts
@@ -9,6 +9,7 @@ import { createBrowserPageCreateActions } from './browser-page-create-actions'
 import { createBrowserPageConversionActions } from './browser-page-conversion-actions'
 import { createBrowserPageFocusActions } from './browser-page-focus-actions'
 import { createBrowserPageStateActions } from './browser-page-state-actions'
+import { createBrowserAudioActions } from './browser-audio-actions'
 import { createBrowserPageMetadataActions } from './browser-page-metadata-actions'
 import { createBrowserHydrationActions } from './browser-hydration-actions'
 import { createBrowserProfileListActions } from './browser-profile-list-actions'
@@ -21,6 +22,8 @@ export const createBrowserSlice: StateCreator<AppState, [], [], BrowserSlice> =
   browserTabsByWorktree: {},
   browserPagesByWorkspace: {},
   browserCertificateFailuresByPageId: {},
+  browserAudiblePageIds: {},
+  browserAudioMutedTabIds: {},
   browserAnnotationsByPageId: {},
   browserAnnotationMarkerIdsByPageId: {},
   remoteBrowserPageHandlesByPageId: {},
@@ -52,6 +55,7 @@ export const createBrowserSlice: StateCreator<AppState, [], [], BrowserSlice> =
   ...createBrowserPageConversionActions(set, get),
   ...createBrowserPageFocusActions(set, get),
   ...createBrowserPageStateActions(set, get),
+  ...createBrowserAudioActions(set, get),
   ...createBrowserPageMetadataActions(set, get),
   ...createBrowserHydrationActions(set, get),
   ...createBrowserProfileListActions(set, get),