SECURITY REPORT · EXTENSHI SCAN

Is Free Mobile Viewer safe?

Checked version: not provided · Assessment updated (UTC): 2026-08-09

Firefox extension·by LepetitJu
79
/ 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

Free Mobile Viewer's safety score vs every other extension we've scanned
Globally
35%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,581 extensions
In Web Development
21%of web development extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 15,264 web development extensions
Findings
8
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
0
median 2vs category median

Findings breakdown

Automated security signal · 8 distinct issues across 6 severities
8
distinct issues
detected

Permissions requested

1 risky permission of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 1 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

Medium
Access current tab

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

Medium
Store local data

Can save data locally in the browser for persistence

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 9, 2026
Browser extensions made transparent.

What this assessment covers

Store listing
Firefox
Checked version
Not provided in this assessment
Current listed version
1.3
Assessment updated (UTC)
Assessment status
Completed

Recorded findings: 1 critical and 1 high severity. Read the finding details before interpreting the score; automated flags are not proof of malicious behaviour.

Automated analysis looks for suspicious code, permissions and other risk signals. It does not observe every runtime behaviour or independently audit the publisher’s servers. A low-risk result is not a guarantee of safety. How our checks work.

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