extenshi.io
SECURITY REPORT · EXTENSHI SCAN

AdBlock Ninja for Firefox

Firefox extension·by AdBlock Ninja
42
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

AdBlock Ninja for Firefox's safety score vs every other extension we've scanned
Globally
1%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 380,722 extensions
In Privacy & Security
1%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 11,886 privacy & security extensions
Findings
279
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
15
median 4Declared in manifest
Active users
74
median 3vs category median

Findings breakdown

Automated security signal · 279 distinct issues across 6 severities
279
distinct issues
detected
Scanners reported 293 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

7 risky permissions of 15 total
1 critical permission require attention
This extension requests 15 permissions in total. 7 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

High
Control proxy settings

Can route your browser traffic through a proxy server

High
Observe web requests

Can monitor all network requests made by the browser

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
View open tabs

Can see URLs and titles of all open tabs

High
Block and modify web requests

Can intercept, block, or modify any network request before it completes

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Access user identity

Can get OAuth2 tokens and access your Google account identity

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Access location

Can determine your physical location

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Show notifications

Can display desktop notifications outside the browser

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Scan performed by extenshi.io · Sep 5, 2026
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