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SECURITY REPORT · EXTENSHI SCAN

はてなブックマーク ブックマーク機能

Firefox extension·by Hatena Co., Ltd.
81
/ 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

はてなブックマーク ブックマーク機能's safety score vs every other extension we've scanned
Globally
80.88%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
70.88%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
5
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
7
median 4All declared perms
Critical findings
1
median 2Severity = Critical

Findings breakdown

Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
Scanners reported 9 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 7 total
3 high-risk permissions require attention
This extension requests 7 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Access current tab

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

Low
Schedule tasks

Can schedule periodic background tasks

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