extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Download Master

Firefox extension·by WestByte Software
83
/ 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

Download Master's safety score vs every other extension we've scanned
Globally
83.35%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
73.35%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
10
median 38Lower is safer
Risky permissions
7
median 1Critical + high perms
Total permissions
13
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
Scanners reported 19 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

7 risky permissions of 13 total
1 critical permission require attention
This extension requests 13 permissions in total. 7 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps

Can exchange messages with applications installed on your computer

High
Manage downloads

Can initiate downloads and access your download history

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
Observe web requests

Can monitor all network requests made by the browser

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Open downloaded files

Can open files that have been downloaded

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Info
downloads.shelf

No additional information available.

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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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