SECURITY REPORT · EXTENSHI SCAN
URLs Add On
Firefox extension·by SimonIWF
73
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
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
URLs Add On's safety score vs every other extension we've scanned
Globally
20%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,636 extensions
In Other
6%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,714 other extensions
Findings
12
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
0
median 2vs category median
Findings breakdown
Automated security signal · 12 distinct issues across 6 severities
12
distinct issues
detected
detected
Critical18%
High18%
Needs Review00%
Medium975%
Low18%
Info00%
Permissions requested
1 risky permission of 5 total
1 high-risk permission require attention
This extension requests 5 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
Write to clipboard
Can place content onto your clipboard
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Custom menus
Can add custom items to the browser context menu
Info
*://*/*
No additional information available.
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Scan performed by extenshi.io · Aug 24, 2026
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