LeechBlock NG icon

LeechBlock NG

by James Anderson

v1.7.2 Updated Jan 20, 2026 424KiB
CWS
100K
Users
★ 4.89
1.3K reviews
#186
of 33.4K
workflow
#69 of 4.2K
⚠️Requests 1 sensitive permission Highly rated

Description

LeechBlock NG (Next Generation) is a simple free productivity tool designed to block those time-wasting sites that can suck the life out of your working day. (You know: the ones that rhyme with 'Blue Cube', 'Space Hook', 'Sticky Media', 'Quitter', and the like.) All you need to do is specify which sites to block and when to block them. You can specify up to 30 sets of sites to block, with different times and days for each set. You can block sites within fixed time periods (e.g., between 9am and 5pm), after a time limit (e.g., allow up to 10 minutes in every hour), or with a combination of time periods and time limit (e.g., allow up to 10 minutes in every hour between 9am and 5pm). Additional features include: • Lockdown: Block sites immediately for a specified duration. • Access control: Set a password or random access code for the options page, to slow you down in moments of weakness! • Delaying: Set a countdown to delay access to sites instead of completely blocking them. • Password: Require a password to allow access to blocked sites. • Wildcards: Block a range of sites (e.g., *.somesite.com). • Exceptions: Whitelist sites you don't want to be blocked (e.g., +allowedsite.com). • Keywords: Block or allow pages based on keywords (e.g., ~badword). Version history: https://www.proginosko.com/leechblock/version-history/ Documentation: https://www.proginosko.com/leechblock/documentation/ Usage examples: https://www.proginosko.com/leechblock/examples/ Permissions explained: https://www.proginosko.com/leechblock/faq/permissions/ Frequently asked questions: https://www.proginosko.com/leechblock/faq/ Support: https://www.proginosko.com/leechblock/support/
LeechBlock NG screenshot 1LeechBlock NG screenshot 2LeechBlock NG screenshot 3LeechBlock NG screenshot 4

Reviews (25 cached)

★☆☆☆☆2026-02-17
Nayan Gyawali

Nice extension love it

★☆☆☆☆2025-12-29
chivalrous expert

This is an ancient plugin, and it's difficult to even understand how it saves settings. One of the options is "Enter the time periods within which to block these sites (optional):" However, when you don't select this parameter (and choose "all day"), you'll find that it simply doesn't work.

★☆☆☆☆2025-05-22
Arthur Blaquart

Great extension, very customizable but why would you prevent going back to previous page after blocking? It's annoying.

★☆☆☆☆2025-05-22
Alexey D

After adding it to Chrome, sometimes an error message 'Something went wrong when opening your profile' appears when I launch the browser. After removing the extension, the problem doesn't reoccur. CHROME VERSION 136.0.7103.114 OS VERSION Mac OS X: 15.5.0

★☆☆☆☆2025-02-14
BDS M.

not working

★☆☆☆☆2024-11-07
Harsh Kumar

its not working on incognito mode

★☆☆☆☆2024-10-12
Sky

Scheduled blocking for a certain specific time period out of the day doesn't seem to work at all. This is the only thing I wanted the extension for, so unfortunately it's useless to me.

★☆☆☆☆2024-08-25
trisha

i dont know why this isnt working since today. works fine on edge though

★☆☆☆☆2024-08-18
Goutham

timer not working

★☆☆☆☆2024-01-02
Jakub Michałowski

Doesn't work. I typed in multiple different variations of the Twitter url in the list and it still loads the website. Unchecked any time limits, I just wanted the website to close upon attempting to open it. Tried with different websites too, and they still load. The extension does not work.

★☆☆☆☆2022-02-28
Liliana Kahn

It worked great on my old Chromebook. On my new Chromebook it makes Spotify stop after about 15 minutes if Leechblock is running. Not sure what changed, but something did. Aside form the glitch it generally works great and I usually love it.

★☆☆☆☆2021-03-10
Amelia rose

i hate DO NOT GET IT

★☆☆☆☆2019-05-29
Hayley McCall

I would give it a better review but my dad went on my computer and added blocks to pretty much everything so I hate it, but if I were to use it for an actual purpose to help myself I would give it a 5.

★★☆☆☆2025-11-13
Bhaskar Vyas

this is so complex to use

★★☆☆☆2025-08-18
Top3 Best (Raccoon King)

It's a good idea, but the way it works is really confusing, i couldn't figure out how the custom message working, and the way you input the site you want to block is really confusing

★★☆☆☆2025-06-02
Zehani Mohamed Youssef

I will rate it 5 if you enable possibility for automated backups with user accounts directly synced to Gmail or any other platform, that I don't have to use manual labor for backup today in 2025 when computer computing did already function and operate you fail to simply implement an automated backup with user accounts, this is shameful, shame on you for that but apart from that I love your app and concept

★★☆☆☆2024-07-10
Tyrone Bell

why is it blocking websites I haven't blocked

★★☆☆☆2024-01-03
Bart

It doesn't work anymore for me. It blocks sites briefly after saving settings, but then it stops working and sites can be opened again.

★★☆☆☆2022-09-18
Veli-Pekka Lampinen

The override feature requires the user to always type in some minute value, and there is no option to disable it. It doesn't even remember the previous value the user typed in there. Really cumbersome to use because of that. I wish things were more streamlined for people who have good self-control. Why can't there be a checkbox for each Block Set to enable and disable them quickly in the menu that opens up by clicking the extension's icon? It's still the best free option available.

★★☆☆☆2019-05-16
Takafumi Hamaya

Firefox desktop version is perfect. But in Chrome desktop version the random code to access to the option is useless, because you can copy and paste the code.

★★★☆☆2024-12-21
Rechee J

It doesn't work in private tab, even though it's supposed to. maybe it's not the dev's fault but this is a major hole

★★★☆☆2024-09-24
MR Arthur

I just installed it now and have been messing around with it for an hour or so, testing it out. I’m really impressed with it. You can schedule days and time durations for the blocks, which is exactly what I was looking for. I thought it was perfect, but I just found one major flaw, and it’s right in front of us: the Chrome extension jigsaw icon in the Chrome toolbar. Even with all the advanced features enabled, you can just click the Chrome extension jigsaw icon in the Chrome toolbar, scroll down to find LeechBlock, and uninstall it. Then you can access all the websites that you had just blocked. I’ve been Googling and using ChatGPT for the last hour trying to figure out how to remove the Chrome jigsaw extension icon, but there appears to be no way of doing so. I hope the developers can address this because, with this flaw, the effectiveness of this extension takes a big hit, even with all the advanced settings in place. I would have rated 5 stars but im gonna give it a 3 because of this.. hopefully can return once fixed and rate it a 5!

★★★☆☆2021-03-31
Ivan Sterligov

waaay too much self-promotion in this app.

★★★☆☆2020-10-29
Alin Sabo

This works well, but without a Safari extension it feel very much incomplete. What is the point to have something that works well on Chrome when i can easily open safari and bypass into oblivion..? Good but useless for mac users

★★★☆☆2018-02-07
Shyam Pinnipati

This is a fantastic productivity tool, but it's causing me some incredibly annoying scroll and video stuttering (confirmed), and possibly typing stuttering as well (unconfirmed). 5 stars otherwise, and definitely 5 stars if you can fix the stuttering issues.

Permissions (8)

Permissions

alarms Can schedule periodic background tasks contextMenus Can add items to the right-click menu history Can read and modify your browsing history offscreen storage Can store data locally in your browser tabs Can see your open tabs and their URLs unlimitedStorage webNavigation Can monitor navigation events

Details

Version 1.7.2
Updated Jan 20, 2026
Size 424KiB
First Seen Mar 21, 2026