SECURITY REPORT · EXTENSHI SCAN
MetaMask Legacy Web3
Edge extension·by MetaMask
57
/ 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
- Built on Manifest V2, which Chrome and Edge are retiring
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
MetaMask Legacy Web3's safety score vs every other extension we've scanned
Globally
52%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,874 extensions
In Developer Tools
72%of developer tools extensions carry more risk
Riskier ←→ Safer
Ranked against 3,824 developer tools extensions
Findings
13
median 18Lower is safer
Critical findings
0
median 1Severity = Critical
Permissions
0
median 3Declared in manifest
Active users
6697
median 42vs category median
Findings breakdown
Automated security signal · 13 distinct issues across 6 severities
13
distinct issues
detected
detected
Critical00%
High538%
Needs Review00%
Medium538%
Low215%
Info18%
Permissions requested
0 permissions declared
No permissions requested
This extension doesn't request any browser permissions. That's unusually clean.
Are you the author of MetaMask Legacy Web3?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show MetaMask Legacy Web3's live security score on GitHub or in your docs
Scan performed by extenshi.io · Oct 22, 2026
Browser extensions made transparent.