Is Client Challenge safe?
Checked version: 0.0.2 · Scan date (UTC): 2026-10-20
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
Findings breakdown
detected
Permissions requested
Manage other extensions(optional)
Can enable, disable, or uninstall other browser extensions
Communicate with desktop apps(optional)
Can exchange messages with applications installed on your computer
Access to all websites(optional)
Can read and modify content on every website you visit
Observe web requests
Can monitor all network requests made by the browser
Block and modify web requests
Can intercept, block, or modify any network request before it completes
Delete browsing data(optional)
Can remove browsing history, cookies, cache, and other browsing data
Add context menu items
Can add custom items to the right-click context menu
Store local data
Can save data locally in the browser for persistence
Unlimited local storage
Can store large amounts of data locally without size limits
Access current tab
Can temporarily access the content of the active tab when you click the extension
Access bookmarks
Can read and modify your saved bookmarks
Read clipboard
Can read text and data currently on your clipboard
Write to clipboard
Can place content onto your clipboard
Access location
Can determine your physical location
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What this assessment covers
- Store listing
- Firefox
- Checked version
- 0.0.2
- Current listed version
- 0.0.2
- Scan date (UTC)
- Assessment status
- Completed
Recorded findings: 4 critical and 15 high severity. Read the finding details before interpreting the score; automated flags are not proof of malicious behaviour.
Automated analysis looks for suspicious code, permissions and other risk signals. It does not observe every runtime behaviour or independently audit the publisher’s servers. A low-risk result is not a guarantee of safety. How our checks work.