SECURITY REPORT · EXTENSHI SCAN
Maskmail
Firefox extension·by Shane O Sullivan
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
Maskmail's safety score vs every other extension we've scanned
Globally
79.86%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
69.86%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
18
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
14
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 18 findings across 5 severities
18
findings
detected
detected
Critical00%
High00%
Medium1478%
Low422%
Info00%
Permissions requested
3 risky permissions of 14 total
1 critical permission require attention
This extension requests 14 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
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
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Read clipboard
Can read text and data currently on your clipboard
Medium
Write to clipboard
Can place content onto your clipboard
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://maskmail.net/
No additional information available.
Info
https://happybun.com/
No additional information available.
Info
https://api.rollbar.com/
No additional information available.
Info
http://localhost/*
No additional information available.
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Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
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