SECURITY REPORT · EXTENSHI SCAN

Fast SubSync

Firefox extension·by Edna Craig

/ 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 SubSync's safety score vs every other extension we've scanned

Globally

86.14%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked across every extension we scan

In its category

76.14%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 · 12 findings across 5 severities

findings
detected

Critical00%

High00%

Medium975%

Low18%

Info217%

Permissions requested

1 risky permission of 17 total

1 high-risk permission require attention

This extension requests 17 permissions in total. 1 of them grant broad capabilities that are worth a careful look.

High

Execute scripts in pages

Can inject and execute JavaScript code in web pages

Medium

Store local data

Can save data locally in the browser for persistence

Medium