Block Site Firefox

Reviews of Block Site

By: Ray
List of user reviews and ratings for Block Site

Total ratings

3.90 (Rating count: 523)
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Review summary

Users praise Block Site for effective, free, and open-source blocking of sites with a straightforward interface. However several users report reliability problems after browser updates and private mode changes, as well as cumbersome rule management that complicates editing. A subset of reviews expresses security concerns about authenticity and unexpected prompts. Overall, the add-on is useful for basic blocking and privacy, but may require patience with updates and rule handling.
Pros
  • Effectively blocks listed sites and pages as intended.
  • Free to use with no subscription, lightweight and simple.
  • Open-source with active maintenance and bug fixes.
  • Useful for improving browser security/privacy and helping curb social media usage.
  • Simple, straightforward extension without bloat.
Cons
  • Reliability and compatibility issues after browser/OS updates, including private mode not working.
  • Rule management is cumbersome: cannot edit rules inline and regex changes can mis-format, requiring full purge and reload.
  • Occasional security/authenticity concerns raised by users, including prompts and suspicion about the vendor.
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User Reviews

Recent rating average: 3.10
All time rating average: 3.90
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5 star
55% (208)
4 star
11% (41)
3 star
6% (21)
2 star
5% (17)
1 star
24% (89)
DateAuthorRatingComment
2026-04-25 *****
2026-04-23 su*****
2026-04-23 ra*****
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