usi (User|Unified Script Injector) extension

Security at a glance

High riskSafety score 37/10061 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: userunified-script-injector

Permissions (12)

  • Access to all websites
  • View open tabs

Frequently asked questions

Is usi (User|Unified Script Injector) safe to use?

Our latest automated scan rates the Firefox listing of usi (User|Unified Script Injector) at 37/100 (high risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.

What permissions does usi (User|Unified Script Injector) require?

usi (User|Unified Script Injector) requests 12 permissions. The most significant: Access to all websites, View open tabs. See the full breakdown in the security report.

Who develops usi (User|Unified Script Injector)?

usi (User|Unified Script Injector) is published by USI. Impersonators copy popular extension names, so always verify the developer line and listing id on the store page before installing.