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8.0
Overall

Ghostery AdBlocker for Privacy

🌐 Chrome Extension

WebshareUltraBlock

Fast, private, and ad-free browsing you can trust!

2,000,000 usersRating: 4.7/5v10.5.44
Low Risk8.0/10

Scanned June 1, 2026

·

Risk Flags

Read and modify cookies for any site
Inject scripts into web pages
5 safer alternatives available
6.6
Permissions
6.0
Developer
10.0
Data Privacy
10.0
Policy Match

Permissions (17)

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
Read and modify cookies for any site
cookiesunusual
Not typical for ad blockers — review why this is needed
Critical
Unknown permission: declarativeNetRequest
declarativeNetRequestunusual
Uncommon for ad blockers but not necessarily a concern
Medium
Unknown permission: declarativeNetRequestFeedback
declarativeNetRequestFeedbackunusual
Uncommon for ad blockers but not necessarily a concern
Medium
Track detailed navigation events
webNavigationacceptable
Common for ad blockers — used by most tools in this category
High
Store data locally in the browser
storageexpected
Standard for ad blockers — this permission is required for core functionality
Low
Inject scripts into web pages
scriptingunusual
Not typical for ad blockers — review why this is needed
Critical
Read your open tabs and navigation activity
tabsacceptable
Common for ad blockers — used by most tools in this category
High
Access the currently active tab when you click the extension
activeTabunusual
Uncommon for ad blockers but not necessarily a concern
Low
Observe and analyze all web traffic
webRequestexpected
Standard for ad blockers — this permission is required for core functionality
Critical
Unknown permission: offscreen
offscreenunusual
Uncommon for ad blockers but not necessarily a concern
Medium
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
Unknown permission: ws://*/*
ws://*/*unusual
Uncommon for ad blockers but not necessarily a concern
Medium
Unknown permission: wss://*/*
wss://*/*unusual
Uncommon for ad blockers but not necessarily a concern
Medium
Unknown permission: *://www.youtube.com/*
*://www.youtube.com/*unusual
Uncommon for ad blockers but not necessarily a concern
Medium

Developer

NameWebshareUltraBlock
Verified PublisherYes
Known EntityNot recognized

Data Flows

Extension background service
Encryptedcookies, tab data

Privacy Policy Analysis

Policy Status
Policy found
https://www.ghostery.com/privacy/ghostery-plans-and-products-privacy-policy
Actual Data Collection
  • cookies
  • tab data
Policy matches observed behavior

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