SECURITY REPORT · EXTENSHI SCAN
MediaSniff
Firefox extension·by chethan
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
MediaSniff's safety score vs every other extension we've scanned
Globally
15%of extensions carry more risk
Riskier ←→ Safer
Ranked against 144,092 extensions
In Other
4%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 20,941 other extensions
Findings
11
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 11 distinct issues across 6 severities
11
distinct issues
detected
detected
Scanners reported 16 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical19%
High19%
Needs Review00%
Medium545%
Low436%
Info00%
Permissions requested
2 risky permissions of 5 total
2 high-risk permissions require attention
This extension requests 5 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
Observe web requests
Can monitor all network requests made by the browser
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Write to clipboard
Can place content onto your clipboard
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Are you the author of MediaSniff?
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Scan performed by extenshi.io · Jul 25, 2026
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