extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Slack Reactions Notifications

Firefox extension·by Simon CLERIOT
46
/ 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 5 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

Slack Reactions Notifications's safety score vs every other extension we've scanned
Globally
27%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,594 extensions
In Social & Communication
13%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,641 social & communication extensions
Findings
39
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
2
median 3vs category median

Findings breakdown

Automated security signal · 39 distinct issues across 6 severities
39
distinct issues
detected
Scanners reported 40 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

6 permissions declared
No risky permissions
6 permissions requested — none are flagged as risky.
Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Access user identity

Can get OAuth2 tokens and access your Google account identity

Medium
Store local data

Can save data locally in the browser for persistence

Info
https://slack.com/*

No additional information available.

Info
https://*.slack.com/*

No additional information available.

Info
https://*.lb.slack-msgs.com/*

No additional information available.

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Scan performed by extenshi.io · Aug 24, 2026
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