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SECURITY REPORT · EXTENSHI SCAN

Arbitrage Everywhere

Firefox extension·by Aiden From Lazy Analytics
40
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.

Likely abandonedsafety score reduced by 30 points

  • No update in over 3 years
  • The developer's website is no longer reachable
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

Arbitrage Everywhere's safety score vs every other extension we've scanned
Globally
14%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,636 extensions
In Shopping
9%of shopping extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 4,466 shopping extensions
Findings
247
median 6Lower is safer
Critical findings
3
median 0Severity = Critical
Permissions
7
median 4Declared in manifest
Active users
1
median 3vs category median

Findings breakdown

Automated security signal · 247 distinct issues across 6 severities
247
distinct issues
detected
Scanners reported 252 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 7 total
2 critical permissions require attention
This extension requests 7 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps

Can exchange messages with applications installed on your computer

Critical
Access to all websites

Can read and modify content on every website you visit

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
View open tabs

Can see URLs and titles of all open tabs

High
Manage downloads

Can initiate downloads and access your download history

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

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Scan performed by extenshi.io · Jul 25, 2026
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