Who is Code Verify for?

Code Verify is a consumer product built for people using WhatsApp, Facebook, Instagram, or Messenger on the web.

Does Code Verify have a free plan?

Yes — Code Verify is free to use.

What platforms does Code Verify run on?

Code Verify runs on the web and embeddable surfaces.

Is Code Verify still maintained?

Unverified. Code Verify has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Code Verify?

Similar projects tracked by PulseGate include Hashrate Lens, SaveAI, and Codex File Drop.

Who develops Code Verify?

Code Verify is developed by Meta.

When did Code Verify launch?

Code Verify first shipped in 2022.

Back to the index

Code Verify

Name: Code Verify
Author: Meta

mozilla.orgBrowser DevTools & extensions

Code Verify is an open-source Firefox extension from Meta that verifies whether the browser code served for WhatsApp, Facebook, Instagram, and Messenger matches the published client. It alerts users when the web client appears inauthentic or modified.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Code Verify is a Browser DevTools & extensions project. It focuses on detecting whether web versions of messaging apps have been modified or replaced with unauthentic code. Code Verify is a consumer product aimed at people using WhatsApp, Facebook, Instagram, or Messenger on the web. Code Verify is free to use. It runs on the web and embeddable surfaces.

Meta builds and maintains Code Verify, and it first shipped in 2022. Key capabilities include code verification, authenticity alerts, and client integrity checks. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Code verification
Authenticity alerts
Client integrity checks
Web transparency
Firefox integration

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed9 Sept · 08:14 UTC
Code Verify verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Code Verify

What is Code Verify?: Code Verify focuses on detecting whether web versions of messaging apps have been modified or replaced with unauthentic code. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Code Verify for?: Code Verify is a consumer product built for people using WhatsApp, Facebook, Instagram, or Messenger on the web.
Does Code Verify have a free plan?: Yes — Code Verify is free to use.
What platforms does Code Verify run on?: Code Verify runs on the web and embeddable surfaces.
Is Code Verify still maintained?: Unverified. Code Verify has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Code Verify?: Similar projects tracked by PulseGate include Hashrate Lens, SaveAI, and Codex File Drop.Hashrate Lens SaveAI Codex File Drop
Who develops Code Verify?: Code Verify is developed by Meta.
When did Code Verify launch?: Code Verify first shipped in 2022.

At a glance

Pricing: Free
Platforms: Web
Built for: People using WhatsApp, Facebook, Instagram, or Messenger on the web
Model: B2C
Solves: Detecting whether web versions of messaging apps have been modified or replaced with unauthentic code.

Registered as

Firefox Add-ons: code-verify

Developer

Meta

Index record

Indexed: 9 Sept 2026
Lifecycle: Alive
Last seen: 9 Sept 2026

Identity audit (13)

Slug: code-verify-mozilla-org
Lifecycle state recorded: 9 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 9 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 9 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/code-verify

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