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SECURITY REPORT · EXTENSHI SCAN

Sidecar | A Classy Nostr Signer

Chrome extension·by The Daniel
71
/ 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

Sidecar | A Classy Nostr Signer's safety score vs every other extension we've scanned
Globally
16%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Make Chrome Yours
14%of make chrome yours extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 25,008 make chrome yours extensions
Findings
228
median 9Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 2Declared in manifest
Active users
219
median 18vs category median

Findings breakdown

Automated security signal · 228 distinct issues across 6 severities
228
distinct issues
detected
Scanners reported 229 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

1 risky permission of 6 total
1 high-risk permission require attention
This extension requests 6 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Show notifications

Can display desktop notifications outside the browser

Low
Use side panel

Can display content in the browser side panel

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Aug 18, 2026
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