Is Client Challenge safe?
Checked version: not provided · Assessment updated (UTC): 2026-08-24
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
Access to all websites
Can read and modify content on every website you visit
Observe web requests
Can monitor all network requests made by the browser
View open tabs
Can see URLs and titles of all open tabs
Block and modify web requests
Can intercept, block, or modify any network request before it completes
Add context menu items
Can add custom items to the right-click context menu
Access user identity
Can get OAuth2 tokens and access your Google account identity
Store local data
Can save data locally in the browser for persistence
Show notifications
Can display desktop notifications outside the browser
Monitor navigation
Can observe and track tab navigation events and URL changes
https://ext.mstodo.connect/
No additional information available.
https://login.live.com/*
No additional information available.
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What this assessment covers
- Store listing
- Firefox
- Checked version
- Not provided in this assessment
- Current listed version
- 0.0.48
- Assessment updated (UTC)
- Assessment status
- Completed
Recorded findings: 1 critical and 3 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.