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.
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LeechBlock NG is a free and simple Chrome extension designed to boost your productivity by blocking distracting websites during your work hours. Users can specify up to 30 customizable sets of sites to block, with options to control blocking by fixed time periods, daily schedules, or by setting time limits.

This extension offers advanced features like lockdown mode to immediately block sites for a specified duration, access control with passwords or randomized codes to prevent impulse disabling, and delay countdowns before site access. Users can also employ wildcards to block entire site ranges and set exceptions to whitelist trusted sites. Keyword-based blocking adds further flexibility to manage web access effectively.

With easy configuration and comprehensive documentation, LeechBlock NG is ideal for anyone seeking to manage their online time and maintain focus by preventing unwanted browsing habits.

Manifest V3 Add-on Productivity Privacy & Security Developer Tools
By:
James Anderson
Daily users:
96,453 -4,786
Rating:
4.82
(1,778) 6 new ratings
Version:
1.7 Last updated: 2025-06-11
Version code:
5963023
Creation date:
2017-10-22
Risk:
High risk impact Moderate risk likelihood
Permissions:
  • alarms
  • menus
  • storage
  • tabs
  • unlimitedStorage
  • webNavigation
Host permissions:
  • <all_urls>
Size:
444.17K
Email:
le*****@proginosko.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Updated:
a day ago

Ranking

# 214 ▼ 3
Other rankings
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Other platforms

LeechBlock NG (v1.7)
90,000 4.89 (1,053)
LeechBlock NG (v1.6.9)
21,475 4.80 (105)

User reviews

LeechBlock NG is praised for its effective website blocking capabilities, aiding users in managing distractions, addictions, and productivity. It offers customization and simple use, making it beneficial for self-control and parental guidance. However, some users find the settings less intuitive and note that the extension can be easily disabled, relying heavily on personal discipline.
Pros
  • Effectively blocks distracting or unwanted websites, helping with focus and self-control.
  • Highly customizable with various useful features for different blocking needs.
  • Simple and easy to use interface for setting up blocks.
  • Great tool for managing addictions like social media or explicit content, beneficial for self-discipline and parental control.
  • Helps improve productivity and concentrate, especially noted during exams or work periods.
Cons
  • Settings interface could be more intuitive for easier adjustment by users.
  • Easily disableable via the extensions manager, requiring strong user willpower to maintain blocks.
Recent reviews
It is truly complete
by Ló*****, 2025-06-12
by Mi*****, 2025-06-11
by Fi*****, 2025-06-10
View all user reviews ›

Extension safety

Risk impact

LeechBlock NG requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood

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

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** **** **** ****** ******* ********** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

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