SECURITY REPORT · EXTENSHI SCAN
Arca
Firefox extension·by DangerCat
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
Arca's safety score vs every other extension we've scanned
Globally
32%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Photos Music Videos
14%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 10,146 photos music videos extensions
Findings
10
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
12
median 3Declared in manifest
Active users
1
median 6vs category median
Findings breakdown
Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
detected
Scanners reported 13 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical220%
High00%
Needs Review00%
Medium660%
Low220%
Info00%
Permissions requested
1 risky permission of 12 total
1 high-risk permission require attention
This extension requests 12 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Observe web requests
Can monitor all network requests made by the browser
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Low
Schedule tasks
Can schedule periodic background tasks
Info
*://x.com/*
No additional information available.
Info
*://twitter.com/*
No additional information available.
Info
*://x.com/*/likes
No additional information available.
Info
*://twitter.com/*/likes
No additional information available.
Are you the author of Arca?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Arca's live security score on GitHub or in your docs
Scan performed by extenshi.io · Jul 25, 2026
Browser extensions made transparent.