# BlockMask

> This is a plugin that allows you verify the integrity of the message and the broadcaster storage in twitter using a smart contract deployed in ethereum blockchain.

Canonical page: [https://chrome-stats.com/d/blockmask](https://chrome-stats.com/d/blockmask)

## Overview

- **ID:** `blockmask`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ARR552
- **Category:** privacy-security,social-communication
- **Daily users:** 1
- **Version:** 1.1
- **Last updated:** 2019-08-09
- **First published:** 2019-06-03
- **Size:** 745 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/blockmask/)
- **Website:** [https://github.com/ARR552/BlockMask](https://github.com/ARR552/BlockMask)

## Description

BlockMask is a Firefox add-on that enables users to check the integrity of messages on Twitter. It leverages Ethereum blockchain's smart contract to store information and implement logic, aiming to mitigate fake news and impersonations.

## Rankings

- #104,742 — Overall
- #47 — ethereum

## Permissions and access

### Permissions

- `*://*/*`
- `tabs`
- `webRequest`
- `webNavigation`
- `storage`
- `activeTab`

### Content script matches

- `twitter.com`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions 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).

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