SECURITY REPORT · EXTENSHI SCAN

Fast forward and backward

Firefox extension·by Carlos

/ 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

Fast forward and backward's safety score vs every other extension we've scanned

Globally

96.64%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked across every extension we scan

In its category

86.64%of its category extensions carry more risk

This extension

Riskier ←→ Safer

Ranked within its category

Findings

median 38Lower is safer

Risky permissions

median 1Critical + high perms

Total permissions

median 4All declared perms

Critical findings

median 2Severity = Critical

Findings breakdown

Automated security signal · 3 findings across 5 severities

findings
detected

Critical00%

High00%

Medium133%

Low267%

Info00%

Permissions requested

1 permission declared

No risky permissions

1 permission requested — none are flagged as risky.

Info

://.youtube.com/*

No additional information available.

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