Opus UI DevTools extension

Security at a glance

Low riskSafety score 91/1006 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: opus-ui-devtools

Permissions (3)

  • Access to all websites
  • Developer tools

Frequently asked questions

Is Opus UI DevTools safe to use?

Our latest automated scan rates the Firefox listing of Opus UI DevTools at 91/100 (low risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.

What permissions does Opus UI DevTools require?

Opus UI DevTools requests 3 permissions. The most significant: Access to all websites, Developer tools. See the full breakdown in the security report.

Who develops Opus UI DevTools?

Opus UI DevTools is published by Big Bad Waffle. Impersonators copy popular extension names, so always verify the developer line and listing id on the store page before installing.