Is TooManyTabs safe?
Checked version: not provided · Assessment updated (UTC): 2026-08-24
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
View open tabs
Can see URLs and titles of all open tabs
Observe web requests
Can monitor all network requests made by the browser
*://developer.mozilla.org/*
No additional information available.
*://*.mozilla.org/*
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
- 1.0
- Assessment updated (UTC)
- Assessment status
- Completed
Recorded findings: 0 critical and 2 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.