Custom Site JS extension

Security at a glance

High riskSafety score 40/10020 findings

Describes the Firefox listing; other stores are scanned separately and can score differently. Automated estimate from our latest scan (malware, permissions, obfuscation) — not a security audit. Higher safety score is better.

See the full security report

Firefox listing ID: custom-site-js

Permissions (4)

  • View open tabs

Frequently asked questions

Is Custom Site JS safe to use?

Our latest automated scan rates the Firefox listing of Custom Site JS at 40/100 (high risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.

What permissions does Custom Site JS require?

Custom Site JS requests 4 permissions. The most significant: View open tabs. See the full breakdown in the security report.

Who develops Custom Site JS?

Custom Site JS is published by David Hicken. Impersonators copy popular extension names, so always verify the developer line and listing id on the store page before installing.