SECURITY REPORT · EXTENSHI SCAN
Diff
Firefox extension·by diff
0
/ 100 SAFETY SCORE
CRITICAL
Severe indicators. Treat as unsafe until the developer addresses these findings.
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
Diff's safety score vs every other extension we've scanned
Globally
0%of extensions carry more risk
Riskier ←→ Safer
Ranked against 401,999 extensions
In Other
0%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,708 other extensions
Findings
12
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
3
median 2vs category median
Findings breakdown
Automated security signal · 12 distinct issues across 6 severities
12
distinct issues
detected
detected
Critical18%
High00%
Needs Review00%
Medium1083%
Low18%
Info00%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Read clipboard
Can read text and data currently on your clipboard
Are you the author of Diff?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Diff's live security score on GitHub or in your docs
Scan performed by extenshi.io · Aug 4, 2026
Browser extensions made transparent.