SECURITY REPORT · EXTENSHI SCAN
FollowUp
Firefox extension·by YuMingZhang
62
/ 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
FollowUp's safety score vs every other extension we've scanned
Globally
67%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,522 extensions
In Tabs
39%of tabs extensions carry more risk
Riskier ←→ Safer
Ranked against 12,546 tabs extensions
Findings
5
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
0
median 2vs category median
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical00%
High120%
Needs Review00%
Medium360%
Low120%
Info00%
Permissions requested
1 risky permission of 3 total
1 high-risk permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Access bookmarks
Can read and modify your saved bookmarks
Medium
Show notifications
Can display desktop notifications outside the browser
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Scan performed by extenshi.io · Aug 7, 2026
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