SECURITY REPORT · EXTENSHI SCAN
NAS Download Manager (for Synology)
Firefox extension·by seansfkelley
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
NAS Download Manager (for Synology)'s safety score vs every other extension we've scanned
Globally
79.89%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
69.89%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
12
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
5
median 4All declared perms
Critical findings
1
median 2Severity = Critical
Findings breakdown
Automated security signal · 12 distinct issues across 6 severities
12
distinct issues
detected
detected
Scanners reported 25 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical18%
High00%
Needs Review00%
Medium758%
Low433%
Info00%
Permissions requested
2 risky permissions of 5 total
2 high-risk permissions require attention
This extension requests 5 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
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
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
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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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