Header Master extension

Security at a glance

Some riskSafety score 76/10020 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: header-master

Permissions (3)

  • Store local data
  • Block network requests (declarative)
  • Block requests with host access

Frequently asked questions

Is Header Master safe to use?

Our latest automated scan rates the Firefox listing of Header Master at 76/100 (some risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.

What permissions does Header Master require?

Header Master requests 3 permissions. The most significant: Store local data, Block network requests (declarative), Block requests with host access. See the full breakdown in the security report.

Who develops Header Master?

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