# Facebook Messenger Flash

> Makes Firefox's taskbar button flash when a new Facebook Messenger message arrives.

Canonical page: [https://chrome-stats.com/d/facebook-messenger-flash](https://chrome-stats.com/d/facebook-messenger-flash)

## Overview

- **ID:** `facebook-messenger-flash`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Netherium
- **Category:** social-communication,alerts-updates
- **Daily users:** 1
- **Weekly downloads:** 1
- **Version:** 1.0.0
- **Last updated:** 2026-09-03
- **First published:** 2026-08-31
- **Size:** 14 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/facebook-messenger-flash/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/facebook-messenger-flash/privacy/](https://addons.mozilla.org/firefox/addon/facebook-messenger-flash/privacy/)

## Description

Facebook Messenger Taskbar Flash restores Windows taskbar alerts for Facebook Messenger in Firefox. When a new message arrives while Messenger is in the background, its taskbar button flashes until you focus the window.

<ul><li>Targets the existing Messenger web-app window without opening another client.</li><li>Detects unread changes using the page title and visible accessibility indicators instead of fragile generated class names.</li><li>Repeats the attention request until Messenger receives focus.</li><li>Includes a three-second manual test so you can verify taskbar flashing immediately.</li><li>Runs entirely on your computer with no analytics, telemetry, advertising, or data transmission.</li></ul>
Designed for Firefox 143 or later on Windows. Messenger must remain open as a Firefox web app or regular Firefox window.

This is an unofficial independent project and is not affiliated with, endorsed by, or sponsored by Meta Platforms, Inc.

## Rankings

- #93,062 — Overall
- #43 — messenger
- #83 — flash
- #137 — adobe flash
- #161 — facebook
- #178 — flashcards

## Permissions and access

### Host permissions

- `https://messenger.com/*`
- `https://www.messenger.com/*`
- `https://www.facebook.com/messages/*`

### Content script matches

- `messenger.com`
- `www.messenger.com`
- `www.facebook.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Request access to the following domains: messenger.com, facebook.com
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Messenger & Notifier for Facebook™](https://chrome-stats.com/d/facebook-messenger-1) — 59 users, 2.50 / 5
- [facebook messenger popup](https://chrome-stats.com/d/facebook-messenger-popup) — 4 users
- [App for Messenger™](https://chrome-stats.com/d/app-for-messenger) — 770 users, 4.17 / 5
- [Messenger for WhatsApp™](https://chrome-stats.com/d/wa-messenger-wext) — 1,811 users, 3.26 / 5
- [Facebook Messenger (Pin Tab)](https://chrome-stats.com/d/facebook-messenger-pin-tab) — 112 users, 4.80 / 5
- [Facebook Messenger as a Sidebar](https://chrome-stats.com/d/fb-messenger-as-a-sidebar) — 801 users, 3.64 / 5
- [Messenger for Facebook™](https://chrome-stats.com/d/facebook-messenger) — 1,627 users, 2.59 / 5
- [Messenger as a Sidebar](https://chrome-stats.com/d/messenger-as-a-sidebar) — 302 users, 4.33 / 5
- [Messenger Sidebar (with Toolbar)](https://chrome-stats.com/d/messenger-sidebar-with-toolbar) — 82 users, 5.00 / 5
- [Discreet invisible messenger for Facebook](https://chrome-stats.com/d/discreet-facebook-messenger) — 9 users, 4.17 / 5
- [Focus Flash Card](https://chrome-stats.com/d/focus-flash-card)
- [FacebookTB](https://chrome-stats.com/d/facebooktb) — 158 users, 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/facebook-messenger-flash)