extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Don't Visit - Block Sites

Firefox extension·by Systemcluster
49
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.

Likely abandonedsafety score reduced by 30 points

  • No update in over 7 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

Don't Visit - Block Sites's safety score vs every other extension we've scanned
Globally
36%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,581 extensions
In Privacy & Security
29%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,497 privacy & security extensions
Findings
10
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 4Declared in manifest
Active users
10
median 3vs category median

Findings breakdown

Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected

Permissions requested

3 risky permissions of 6 total
3 high-risk permissions require attention
This extension requests 6 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Observe web requests

Can monitor all network requests made by the browser

High
Block and modify web requests

Can intercept, block, or modify any network request before it completes

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Store local data

Can save data locally in the browser for persistence

Info
*://*/*

No additional information available.

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Scan performed by extenshi.io · Aug 4, 2026
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