Is Known Sites safe?
Checked version: 1.1.0 · 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
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
Block and modify web requests
Can intercept, block, or modify any network request before it completes
Access browsing history
Can read and modify your complete browsing history
Access bookmarks
Can read and modify your saved bookmarks
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What this assessment covers
- Store listing
- Firefox
- Checked version
- 1.1.0
- Current listed version
- 1.1.0
- Scan date (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.