SECURITY REPORT · EXTENSHI SCAN
Senderstack
Firefox extension·by Senderstack
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
Senderstack's safety score vs every other extension we've scanned
Globally
88.21000000000001%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
78.21000000000001%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
10
median 38Lower is safer
Risky permissions
0
median 1Critical + high perms
Total permissions
13
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
detected
Scanners reported 15 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High110%
Needs Review00%
Medium770%
Low220%
Info00%
Permissions requested
13 permissions declared
No risky permissions
13 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://senderstack.com/?logged_out=true
No additional information available.
Info
https://senderstack.com/dashboard
No additional information available.
Info
https://senderstack.com/congratulatory
No additional information available.
Info
https://senderstack.com/upgrade
No additional information available.
Info
https://mail.google.com/*
No additional information available.
Info
http://127.0.0.1:8000/?logged_out=true
No additional information available.
Info
http://localhost:8000/dashboard
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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