extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Maskmail

Firefox extension·by Shane O Sullivan
88
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

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
88.01%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
78.01%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
9
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 · 9 distinct issues across 6 severities
9
distinct issues
detected
Scanners reported 13 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 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 · Jul 25, 2026· partial run (some scanners failed)
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