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JustBlock – Free Ad Blocker & Browser SecurityReviews, users & alternatives

By Conversion Boooster SL

Block intrusive ads and popups, reduce common trackers and browse with more control. Free core protection.

  • Workflow & Planning
  • Updated 4 days ago
Track on RadarChrome Web StoreStore
On the store10+ yrsApproximate
Users≈70KStore-rounded
Rating4.62.6K ratings
Updated7 Nov 2026v3.3.24
AccessLowNone sensitive

Screenshots

5
1 of 5

Details

Website
Not listed
Version
3.3.24
Size
300KiB
Manifest
V3
Extension ID
hiajdlfgbgnnjakkbnpdhmhfhklkbiol

The maker

All 4 listings

Conversion Boooster SLUpdates often

4 listings · ≈71K users

Reviews

Loading reviews…

Permissions

What it can access, not what it does.

Low access

Asks only for everyday access, nothing we track as sensitive.

Browser access 4

Standard4

  • Save its own settingsstorage
  • Block or redirect requests with set rulesdeclarativeNetRequest
  • Work on the tab you click it onactiveTab
  • Run tasks on a schedulealarms

Members see when a new version asks for more.

Website access 1

  • billing.justblock.org

Competitors

Finding competitors…

Source: Chrome Web Store and Ext Watch checks. “—” = not tracked yet.

JustBlock at a glance

JustBlock – Free Ad Blocker & Browser Security is a Workflow & Planning extension by Conversion Boooster SL with ≈70K users. Chrome Web Store users rate it 4.6 out of 5 from 2.6K ratings. By users it sits in the top 5% of Workflow & Planning extensions. It was updated 4 days ago.

JustBlock alternatives

Closest by what they do

All JustBlock alternatives compared. Best Workflow & Planning extensions

Is JustBlock safe? (permissions)

JustBlock asks for 4 permissions and access to 1 site pattern. None of them are on our list of wide-access permissions.

Permissions show what it could do, not what it does. See the full permission list.

JustBlock not working?

  • 0 of the 3 reviews posted in the last 90 days gave 1 or 2 stars.
  • It was updated in the last two weeks. A fresh update can fix a problem, or occasionally cause one.

Common fixes

  • Update Chrome and the extension
  • Turn it off and on in chrome://extensions
  • Reload the page
  • Turn other extensions off in case two clash

Still stuck? Contact the maker or try an alternative.