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SECURITY REPORT · EXTENSHI SCAN

TabFence: Time Based Site Blocker

Firefox extension·by KuduzKunduz
82
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.

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

TabFence: Time Based Site Blocker's safety score vs every other extension we've scanned
Globally
32%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,885 extensions
In Privacy & Security
40%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,625 privacy & security extensions
Findings
7
median 11Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 4Declared in manifest
Active users
6
median 3vs category median

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected

Permissions requested

1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Oct 22, 2026
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