SECURITY REPORT · EXTENSHI SCAN
Client Challenge
Firefox extension·by chzesa
90
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.
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
61%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,874 extensions
In Tabs
44%of tabs extensions carry more risk
Riskier ←→ Safer
Ranked against 12,654 tabs extensions
Findings
14
median 7Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
8
median 3Declared in manifest
Active users
12
median 3vs category median
Findings breakdown
Automated security signal · 14 distinct issues across 6 severities
14
distinct issues
detected
detected
Critical00%
High214%
Needs Review00%
Medium1179%
Low17%
Info00%
Permissions requested
2 risky permissions of 8 total
2 high-risk permissions require attention
This extension requests 8 permissions in total. 2 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
View open tabs
Can see URLs and titles of all open tabs
Medium
Access bookmarks
Can read and modify your saved bookmarks
Medium
Container tabs
Can manage Firefox container tabs and their identities
Medium
Custom menus
Can add custom items to the browser context menu
Medium
Override context menu
Can override the default context menu behavior
Medium
Access session data
Can query and restore recently closed tabs and windows
Medium
Store local data
Can save data locally in the browser for persistence
Are you the author of Client Challenge?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Client Challenge's live security score on GitHub or in your docs
Scan performed by extenshi.io · Oct 22, 2026
Browser extensions made transparent.