SECURITY REPORT · EXTENSHI SCAN

Fast File Convert PLUS!

Firefox extension·by FastFileConvert
37
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.

Likely abandonedsafety score reduced by 30 points

  • No update in over 6 years
  • Bundles libraries with known vulnerabilities and no fix in sight
Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

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

Fast File Convert PLUS!'s safety score vs every other extension we've scanned
Globally
11%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,612 extensions
In Other
3%of other extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 28,744 other extensions
Findings
36
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
10
median 3Declared in manifest
Active users
1
median 2vs category median

Findings breakdown

Automated security signal · 36 distinct issues across 6 severities
36
distinct issues
detected
Scanners reported 43 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 10 total
3 high-risk permissions require attention
This extension requests 10 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
View most visited sites

Can see your most frequently visited websites

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
Access location

Can determine your physical location

Info
https://*.ampfeed.com/*

No additional information available.

Info
https://fastfileconvert.com/*

No additional information available.

Info
https://flow.lavasoft.com/*

No additional information available.

Info
*://api.bing.com/*

No additional information available.

Info
*://geoip-db.com/*

No additional information available.

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Scan performed by extenshi.io · Aug 6, 2026
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