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.
LeechBlock NG - Productivity Add-On for Firefox
"LeechBlock NG" is a free Firefox add-on that aids productivity by allowing users to block distractions. This tool blocks specific websites during certain time periods, or after a user-set time limit, to help users better manage their time. It features multiple functions like immediate site lockdown, options access control, delayed access, and the ability to block a range of sites using wildcards.
Add-on stats
Manifest V3
By: James Anderson
Rating: 4.80 
4 new ratings
(1,718)
Weekly download count: 1,959
Firefox on Android: Yes
Permissions:
- alarms
- downloads
- history
- menus
- storage
- tabs
- unlimitedStorage
- webNavigation
Host permissions:
- <all_urls>
Size: 432.81K
Email: le*****@proginosko.com
URLs: Website
Full description: See detailed description
Ranking
# 205 ▼ 4
Other platforms
Not available on Android
User reviews
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spammy, or outdated. Pros
- Flexible and easy to use for blocking distracting sites
- Effective in improving productivity and focus
- Customizable with advanced blocking options
- Helps users combat online addictions, especially during work hours
- Has a delay-page option to force evaluation before visiting blocked sites
Cons
- Unintuitive interface making configuration challenging
- Increases RAM usage significantly
- Lack of features for indefinite site blocking
- Absence of sync option for block lists across devices
Most mentioned
- Granular control for site blocking
- Productivity improvement
- Difficult to configure options
- High RAM usage
User reviews
by Firefox user 18874224, 2025-03-09
by Firefox user 18852107, 2025-03-07
by envoltorio, 2025-03-06
Add-on 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.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of LeechBlock NG. Use it at your own risk.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
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