Code Verify

Code Verify

An extension to verify the code running in your browser matches what was published.

Code Verify promo image
What is Code Verify?

"Code Verify" is an open-source Firefox extension designed for users who want to verify the authenticity of the client code served in their browser while using apps like WhatsApp, Facebook, Instagram, and Messenger on the web. The extension alerts the user if any inconsistencies are detected, bolstering security & privacy and offering peace of mind.

Users: 676 ▲ 8
Rating: 3.25 (12)
Version: 3.4.0 (Last updated: 2024-02-05)
Creation date: 2022-02-18
Weekly download count: 28
Firefox on Android: No
Risk impact: Very high risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
  • webRequest
  • https://**
  • *://**
  • *://**
  • *://**
  • *://**
Size: 129.41K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Overview An extension to verify that the code running in your browser matches what was published.

VERIFY AUTHENTICITY OF YOUR CLIENT The new Code Verify is an open-source browser extension that lets you verify the authenticity of the WhatsApp, Facebook, Instagram, or Messenger client that you are being served when you use them on the web. Code Verify will immediately alert you if your web version is inauthentic or has been modified.

NEED FOR WEB TRANSPARENCY Mobile phones have security verification protocols in place to ensure that the client you’re downloading is authentic and hasn’t been modified. Unfortunately, those assurances haven’t existed for web-based implementations of apps (those that run on web browsers). Code Verify was created as a solution.

When people use messaging apps via the web, they’re being served Javascript rather than a binary application. This means it's technically possible to serve people a different experience than what they were expecting.

We know that bad actors may want to alter an app and distribute that app to unsuspecting targets. For example, a bad actor could serve someone a version that was created to spy on them – without them ever knowing the difference.

DESIGNED FOR SECURITY-CONSCIOUS USERS Code Verify was designed with our most security-conscious users in mind — those who might want additional peace of mind about their message security. Millions of people use WhatsApp, Facebook, Instagram, and Messenger on the web each month, and this type of independent verification and redundancy (also known as binary transparency) on the web is a huge step forward for online privacy.

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User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • works
  • Perfect!
  • Doesn't appear in the toolbar like the screenshots demonstrate.
  • greyed despite possessing access to the site.
  • the source code isn't linked in this listing.
  • Broken on Whatsapp Web
  • causes slowness and crashes on Facebook
Most mentioned
  • source code
  • Facebook
  • toolbar
View all user reviews
Risk impact

Code Verify is very risky to use and it requires a lot of sensitive permissions. Avoid installing this add-on unless you absolutely trust this publisher.

Risk likelihood

Code Verify is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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