# LeechBlock NG

> LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

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

## Overview

- **ID:** `leechblock-ng`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** James Anderson
- **Category:** other
- **Daily users:** 109,153
- **Weekly downloads:** 1,889
- **Rating:** 4.83 / 5 (2,026 ratings)
- **Version:** 1.7.3
- **Last updated:** 2026-08-04
- **First published:** 2017-10-22
- **Size:** 436 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/leechblock-ng/)
- **Website:** [https://www.proginosko.com/leechblock/support/](https://www.proginosko.com/leechblock/support/)

## Description

**LeechBlock NG** is a free and simple productivity Chrome extension designed to help you stay focused by blocking distracting websites during specified times. You can define up to 30 sets of sites to block, customize blocking schedules, set time limits, and even enable a lockdown mode to prevent access immediately.

Key features include password protection to avoid impulsive disabling, wildcard site blocking, keyword-based blocking or allowances, and options for delayed access. Whether you want to block social media, video streaming, or other distracting sites during work hours, LeechBlock NG offers flexible, customizable controls to enhance your productivity without hassle.

For detailed documentation, examples, and support, visit the official LeechBlock NG website.

## Rankings

- #210 — Overall
- #5 — Other extensions
- #1 — ai tech
- #1 — waste
- #2 — writer's block
- #3 — example

## Permissions and access

### Permissions

- `alarms`
- `menus`
- `storage`
- `tabs`
- `unlimitedStorage`
- `webNavigation`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`
- `*`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Very low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension was updated in the past 3 months. 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).

## Review summary

Users consistently praise LeechBlock NG for its reliable blocking of distracting sites, customization options, and life-changing impact on reducing doomscrolling and online addictions. Reviewers highlight its effectiveness, balance of simplicity with power, and features that prevent bypass. The tone is largely positive and emphasizes time saved and healthier browsing habits, with only rare mentions of minor inconveniences.

### Pros

- Effectively blocks distracting websites and helps curb doomscrolling and internet addiction.
- Highly customizable with many options to tailor blocking.
- Works as intended and remains lightweight with minimal bloat.
- Described as life-changing and life-saving for breaking addictive browsing habits.
- Tab-closure feature stops blocked pages from loading, reducing temptation.

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