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SECURITY REPORT · EXTENSHI SCAN

Is Serial Filler safe?

Checked version: not provided · Assessment updated (UTC): 2026-10-22

Firefox extension·by Serial Filler
94
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

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

Serial Filler's safety score vs every other extension we've scanned
Globally
77%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,831 extensions
In Appearance
50%of appearance extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 19,032 appearance extensions
Findings
5
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 2Declared in manifest
Active users
0
median 3vs category median

Findings breakdown

Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected

Permissions requested

2 risky permissions of 3 total
1 critical permission require attention
This extension requests 3 permissions in total. 2 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
View open tabs

Can see URLs and titles of all open tabs

Medium
Add context menu items

Can add custom items to the right-click context menu

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Scan performed by extenshi.io · Oct 22, 2026
Browser extensions made transparent.

What this assessment covers

Store listing
Firefox
Checked version
Not provided in this assessment
Current listed version
0.3.1resigned1
Assessment updated (UTC)
Assessment status
Completed

Recorded findings: 0 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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