SECURITY REPORT · EXTENSHI SCAN
Ad-Free Adblock | Ultimate Ad Blocker
Firefox extension·by Carlos Storm
0
/ 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
Ad-Free Adblock | Ultimate Ad Blocker's safety score vs every other extension we've scanned
Globally
3%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
2%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
17
median 5Lower is safer
Critical findings
4
median 0Severity = Critical
Permissions
6
median 4Declared in manifest
Active users
5
median 3vs category median
Findings breakdown
Automated security signal · 17 distinct issues across 6 severities
17
distinct issues
detected
detected
Scanners reported 20 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical424%
High212%
Needs Review00%
Medium1059%
Low16%
Info00%
Permissions requested
3 risky permissions of 6 total
1 critical permission require attention
This extension requests 6 permissions in total. 3 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
View open tabs
Can see URLs and titles of all open tabs
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Medium
Store local data
Can save data locally in the browser for persistence
Low
Schedule tasks
Can schedule periodic background tasks
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
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Scan performed by extenshi.io · Jul 25, 2026
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