extenshi.io
SECURITY REPORT · EXTENSHI SCAN

BlockChan [4chan / 4channel]

Firefox extension·by lugg3
62
/ 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 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

BlockChan [4chan / 4channel]'s safety score vs every other extension we've scanned
Globally
62.45%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
52.45%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
5
median 38Lower is safer
Risky permissions
0
median 1Critical + high perms
Total permissions
4
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
Scanners reported 6 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

4 permissions declared
No risky permissions
4 permissions requested — none are flagged as risky.
Medium
Store local data

Can save data locally in the browser for persistence

Medium
Add context menu items

Can add custom items to the right-click context menu

Info
*://boards.4channel.org/*/*

No additional information available.

Info
*://boards.4chan.org/*/*

No additional information available.

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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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