SECURITY REPORT · EXTENSHI SCAN
Meisai
Firefox extension·by Ankit Anshu
0
/ 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
Meisai's safety score vs every other extension we've scanned
Globally
26%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Alerts & Updates
10%of alerts & updates extensions carry more risk
Riskier ←→ Safer
Ranked against 6,603 alerts & updates extensions
Findings
26
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
12
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 26 distinct issues across 6 severities
26
distinct issues
detected
detected
Critical14%
High28%
Needs Review00%
Medium2181%
Low28%
Info00%
Permissions requested
5 risky permissions of 12 total
5 high-risk permissions require attention
This extension requests 12 permissions in total. 5 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
Execute scripts in pages
Can inject and execute JavaScript code in web pages
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
High
Access all HTTPS sites
Can read and modify content on all encrypted websites
High
Access browsing history(optional)
Can read and modify your complete browsing history
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
Show notifications
Can display desktop notifications outside the browser
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Access bookmarks
Can read and modify your saved bookmarks
Low
Schedule tasks
Can schedule periodic background tasks
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
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Scan performed by extenshi.io · Aug 17, 2026
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