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8.6
Overall

uBlock Origin

🌐 Chrome Extension

Unknown

Finally, an efficient blocker. Easy on CPU and memory.

14,000,000 usersRating: 4.7/5v1.71.0
Low Risk8.6/10
2 scans total

Scanned June 2, 2026

·
8.2
Permissions
6.0
Developer
10.0
Data Privacy
10.0
Policy Match

Permissions (21)

Schedule tasks to run periodically
alarmsacceptable
Common for ad blockers — used by most tools in this category
Low
Add items to right-click menus
contextMenusexpected
Standard for ad blockers — this permission is required for core functionality
None
Unknown permission: privacy
privacyunusual
Uncommon for ad blockers but not necessarily a concern
Medium
Store data locally in the browser
storageexpected
Standard for ad blockers — this permission is required for core functionality
Low
Read your open tabs and navigation activity
tabsacceptable
Common for ad blockers — used by most tools in this category
High
Unknown permission: unlimitedStorage
unlimitedStorageacceptable
Common for ad blockers — used by most tools in this category
Medium
Track detailed navigation events
webNavigationacceptable
Common for ad blockers — used by most tools in this category
High
Observe and analyze all web traffic
webRequestexpected
Standard for ad blockers — this permission is required for core functionality
Critical
Intercept and modify web traffic
webRequestBlockingexpected
Standard for ad blockers — this permission is required for core functionality
Critical
Access all websites you visit
<all_urls>expected
Standard for ad blockers — this permission is required for core functionality
Critical
Access data on *
http://*/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access data on *
https://*/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access data on easylist.to
https://easylist.to/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access data on *.fanboy.co.nz
https://*.fanboy.co.nz/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access data on filterlists.com
https://filterlists.com/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access data on forums.lanik.us
https://forums.lanik.us/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access GitHub repositories and data
https://github.com/*acceptable
Common for ad blockers — used by most tools in this category
High
Access data on *.github.io
https://*.github.io/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access GitHub repositories and data
https://github.com/uBlockOrigin/*acceptable
Common for ad blockers — used by most tools in this category
High
Access data on ublockorigin.github.io
https://ublockorigin.github.io/*acceptable
Common for ad blockers — used by most tools in this category
Medium
Access data on *.reddit.com
https://*.reddit.com/r/uBlockOrigin/*acceptable
Common for ad blockers — used by most tools in this category
Medium

Developer

NameNot disclosed
Verified PublisherYes
Known EntityNot recognized

Data Flows

Extension background service
Encryptedtab data

Privacy Policy Analysis

Policy Status
Policy found
https://github.com/gorhill/uBlock/wiki/Privacy-policy
Actual Data Collection
  • tab data
Policy matches observed behavior

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