SECURITY REPORT · EXTENSHI SCAN
mail.com MailCheck
Chrome extension·by 1&1 Mail & Media GmbH
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
mail.com MailCheck's safety score vs every other extension we've scanned
Globally
59.32%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
49.32%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
27
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
9
median 4All declared perms
Critical findings
1
median 2Severity = Critical
Findings breakdown
Automated security signal · 27 distinct issues across 6 severities
27
distinct issues
detected
detected
Scanners reported 34 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical14%
High415%
Needs Review00%
Medium1970%
Low311%
Info00%
Permissions requested
2 risky permissions of 9 total
2 high-risk permissions require attention
This extension requests 9 permissions in total. 2 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
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
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Access user identity
Can get OAuth2 tokens and access your Google account identity
Low
Schedule tasks
Can schedule periodic background tasks
Low
Create offscreen documents
Can create hidden documents for background processing tasks
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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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