SECURITY REPORT · EXTENSHI SCAN
Multithread Download Manager Optimized
Firefox extension·by Comss
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
Multithread Download Manager Optimized's safety score vs every other extension we've scanned
Globally
67.02000000000001%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
57.02000000000001%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
34
median 38Lower is safer
Risky permissions
5
median 1Critical + high perms
Total permissions
13
median 4All declared perms
Critical findings
1
median 2Severity = Critical
Findings breakdown
Automated security signal · 34 findings across 5 severities
34
findings
detected
detected
Critical13%
High515%
Medium2779%
Low13%
Info00%
Permissions requested
5 risky permissions of 13 total
1 critical permission require attention
This extension requests 13 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
High
Manage downloads
Can initiate downloads and access your download history
High
Observe web requests
Can monitor all network requests made by the browser
High
Block and modify web requests
Can intercept, block, or modify any network request before it completes
High
View open tabs
Can see URLs and titles of all open tabs
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
Medium
Open downloaded files
Can open files that have been downloaded
Medium
Read clipboard
Can read text and data currently on your clipboard
Medium
Write to clipboard
Can place content onto your clipboard
Medium
Custom menus
Can add custom items to the browser context menu
Medium
Override context menu
Can override the default context menu behavior
Medium
Show notifications
Can display desktop notifications outside the browser
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Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
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