SECURITY REPORT · EXTENSHI SCAN
SellerFast
Firefox extension·by dotanero
82
/ 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
SellerFast's safety score vs every other extension we've scanned
Globally
45%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,522 extensions
In Shopping
34%of shopping extensions carry more risk
Riskier ←→ Safer
Ranked against 4,461 shopping extensions
Findings
11
median 6Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
11
median 4Declared in manifest
Active users
0
median 3vs category median
Findings breakdown
Automated security signal · 11 distinct issues across 6 severities
11
distinct issues
detected
detected
Scanners reported 18 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High218%
Needs Review00%
Medium873%
Low19%
Info00%
Permissions requested
11 permissions declared
No risky permissions
11 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://www.amazon.com/*/dp/*
No additional information available.
Info
https://www.amazon.com/dp/*
No additional information available.
Info
https://www.amazon.co.jp/*/dp/*
No additional information available.
Info
https://www.amazon.co.jp/dp/*
No additional information available.
Info
https://www.amazon.co.uk/*/dp/*
No additional information available.
Info
https://www.amazon.co.uk/dp/*
No additional information available.
Info
https://www.amazon.de/*/dp/*
No additional information available.
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Scan performed by extenshi.io · Aug 24, 2026
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