Run JavaScript extension

Security at a glance

Low riskSafety score 90/1007 findings

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: run-javascript

Permissions (4)

  • Access to all websites
  • Execute scripts in pages

Frequently asked questions

Is Run JavaScript safe to use?

Our latest automated scan rates the Firefox listing of Run JavaScript at 90/100 (low risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.

What permissions does Run JavaScript require?

Run JavaScript requests 4 permissions. The most significant: Access to all websites, Execute scripts in pages. See the full breakdown in the security report.

Who develops Run JavaScript?

Run JavaScript is published by datttyt. Impersonators copy popular extension names, so always verify the developer line and listing id on the store page before installing.