extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Deadweight

Firefox extension·by Sev's
67
/ 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

Deadweight's safety score vs every other extension we've scanned
Globally
11%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,748 extensions
In Privacy & Security
8%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,508 privacy & security extensions
Findings
22
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
9
median 4Declared in manifest
Active users
1
median 3vs category median

Findings breakdown

Automated security signal · 22 distinct issues across 6 severities
22
distinct issues
detected

Permissions requested

6 risky permissions of 9 total
6 high-risk permissions require attention
This extension requests 9 permissions in total. 6 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

High
View open tabs

Can see URLs and titles of all open tabs

High
Observe web requests

Can monitor all network requests made by the browser

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

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Scan performed by extenshi.io · Aug 3, 2026
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