SECURITY REPORT · EXTENSHI SCAN
Dark theme for Slack
Firefox extension·by BigsyBiggins
50
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
Likely abandonedsafety score reduced by 30 points
- No update in over 7 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
Dark theme for Slack's safety score vs every other extension we've scanned
Globally
39%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,225 extensions
In Social & Communication
21%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 13,601 social & communication extensions
Findings
5
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
33
median 3vs category median
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical120%
High00%
Needs Review00%
Medium00%
Low480%
Info00%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Info
http://www.slack.com/
No additional information available.
Info
http://*.slack.com/*
No additional information available.
Info
https://*.slack.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 3, 2026
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