Block Site Extension

Effortlessly block and redirect websites with customizable rules to stay focused and productive.

Block Site Extension is designed to help you maintain focus and increase productivity by blocking distracting websites. With its easy-to-use interface, you can create customizable rules to block specific sites or redirect them to URLs of your choice. Whether working, studying, or managing your online time, this lightweight tool ensures a distraction-free browsing experience. Install now and take control of your digital habits!

By:
MarkAlexI
Daily users:
1,156 156
Rating:
4.53
(17)
Version:
2.6.18 Last updated: 2025-07-09
Version code:
5985937
Creation date:
2024-08-29
Risk:
High risk impact Moderate risk likelihood
Permissions:
  • declarativeNetRequestWithHostAccess
  • storage
  • tabs
Host permissions:
  • *://*/
Size:
277.93KB
Email:
aa*****@gmail.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Data ingested on:
2025-07-14

Other platforms

Block Site Extension (v2.6.18)
273 4.71 (14)

User reviews

Users find the Block Site Extension effective and easy to use for blocking distracting websites, helping improve focus and mental health. It is praised for working well without intrusive notifications and offering straightforward rule management. However, several users feel it is too easy to disable the add-on, reducing its efficacy. The UI could be more user-friendly, particularly in rule management, and the lack of notifications can cause confusion regarding blocked sites. Overall, it is a valuable tool but could benefit from enhanced control features and UI improvements.
Pros
  • Effectively blocks distracting websites, aiding in focusing and improving mental health.
  • Easy to add and manage blocking rules.
  • Does not interfere when manually entering blocked sites, providing a seamless experience.
  • Has no intrusive notifications upon blocking, which some users find positive.
  • Simple and reliable functionality, works as intended.
Cons
  • Too easy to disable or turn off the add-on, reducing its effectiveness for users who want stricter controls.
  • Lacks notifications or feedback when a site is blocked, causing some users to be unaware of the blocking.
  • User interface could be improved, such as allowing adding new rules from the top instead of scrolling.
  • Some users experience difficulty with certain sites not being blocked as expected, possibly due to user error.
Recent reviews
by @r*****, 2025-07-06

Thank you so much. I kept visiting the same websites compulsively all day every day and now I can't anymore. It's really helpful for my mental health. And it works very well, I'm not having any issue with it. Take care.
by Di*****, 2025-06-22

great
by fr*****, 2025-06-17
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Block Site Extension 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 ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Block Site Extension 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.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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