# Block3rd

> Block requests to 3rd party hosts.

Canonical page: [https://chrome-stats.com/d/block3rd](https://chrome-stats.com/d/block3rd)

## Overview

- **ID:** `block3rd`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** mai
- **Category:** privacy-security
- **Version:** 0.8
- **Last updated:** 2020-11-30
- **First published:** 2020-11-29
- **Size:** 14 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/block3rd/)

## Description

Block3rd is a powerful Firefox add-on that enhances your browsing privacy and security by automatically blocking requests to 3rd party hosts. With its per-site whitelist feature, you can easily customize your preferences and maintain control over your online activities.

## Rankings

- #135,232 — Overall

## Permissions and access

### Permissions

- `<all_urls>`
- `webRequest`
- `webRequestBlocking`
- `storage`
- `activeTab`

## Safety

- **Risk impact:** Moderate 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/block3rd)