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SECURITY REPORT · EXTENSHI SCAN

Client Challenge

Firefox extension·by lucas
15
/ 100 SAFETY SCORE
CRITICAL
Severe indicators. Treat as unsafe until the developer addresses these findings.

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

Client Challenge's safety score vs every other extension we've scanned
Globally
0%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,748 extensions
In Web Development
0%of web development extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 15,290 web development extensions
Findings
256
median 4Lower is safer
Critical findings
43
median 0Severity = Critical
Permissions
19
median 3Declared in manifest
Active users
1
median 2vs category median

Findings breakdown

Automated security signal · 256 distinct issues across 6 severities
256
distinct issues
detected
Scanners reported 315 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

6 risky permissions of 19 total
6 high-risk permissions require attention
This extension requests 19 permissions in total. 6 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
View open tabs

Can see URLs and titles of all open tabs

High
Manage downloads

Can initiate downloads and access your download history

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Block requests with host access

Can block or redirect network requests and requires host permissions

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

Low
Use side panel

Can display content in the browser side panel

Low
Manage tab groups

Can create and manage tab groups

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Scan performed by extenshi.io · Aug 25, 2026
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