SECURITY REPORT · EXTENSHI SCAN
free USTB
Edge extension·by hunsh
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 4 years
- Built on Manifest V2, which Chrome and Edge are retiring
- Bundles libraries with known vulnerabilities and no fix in sight
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
free USTB'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 Accessibility
45%of accessibility extensions carry more risk
Riskier ←→ Safer
Ranked against 1,856 accessibility extensions
Findings
20
median 12Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
8
median 3Declared in manifest
Active users
344
median 126vs category median
Findings breakdown
Automated security signal · 20 distinct issues across 6 severities
20
distinct issues
detected
detected
Scanners reported 27 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical210%
High630%
Needs Review00%
Medium525%
Low735%
Info00%
Permissions requested
7 risky permissions of 8 total
7 high-risk permissions require attention
This extension requests 8 permissions in total. 7 of them grant broad capabilities that are worth a careful look.
High
Control proxy settings
Can route your browser traffic through a proxy server
High
View open tabs
Can see URLs and titles of all open tabs
High
Delete browsing data
Can remove browsing history, cookies, cache, and other browsing data
High
Observe web requests
Can monitor all network requests made by the browser
High
Block and modify web requests
Can intercept, block, or modify any network request before it completes
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
Medium
Add context menu items
Can add custom items to the right-click context menu
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Scan performed by extenshi.io · Aug 19, 2026
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