SECURITY REPORT · EXTENSHI SCAN
NERD Download Manager Browser Integration
Firefox extension·by NERD Download Manager
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
NERD Download Manager Browser Integration's safety score vs every other extension we've scanned
Globally
10%of extensions carry more risk
Riskier ←→ Safer
Ranked against 357,609 extensions
In Download Management
4%of download management extensions carry more risk
Riskier ←→ Safer
Ranked against 3,745 download management extensions
Findings
33
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
9
median 4Declared in manifest
Active users
2
median 10vs category median
Findings breakdown
Automated security signal · 33 distinct issues across 6 severities
33
distinct issues
detected
detected
Critical13%
High721%
Needs Review00%
Medium1855%
Low13%
Info618%
Permissions requested
5 risky permissions of 9 total
5 high-risk permissions require attention
This extension requests 9 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
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
View open tabs
Can see URLs and titles of all open tabs
High
Manage downloads
Can initiate downloads and access your download history
High
Block and modify web requests
Can intercept, block, or modify any network request before it completes
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
Info
*://*/*
No additional information available.
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Scan performed by extenshi.io · Aug 19, 2026
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