SECURITY REPORT · EXTENSHI SCAN
ABC JS-CSS Injector
Firefox extension·by ABCeLearning
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
ABC JS-CSS Injector's safety score vs every other extension we've scanned
Globally
33%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Tabs
14%of tabs extensions carry more risk
Riskier ←→ Safer
Ranked against 11,722 tabs extensions
Findings
21
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
64
median 3vs category median
Findings breakdown
Automated security signal · 21 distinct issues across 6 severities
21
distinct issues
detected
detected
Scanners reported 30 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High15%
Needs Review00%
Medium1676%
Low314%
Info15%
Permissions requested
1 risky permission of 3 total
1 critical permission require attention
This extension requests 3 permissions in total. 1 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
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
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Scan performed by extenshi.io · Jul 25, 2026
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