Is Headers Safe?
Headers — Nerq Trust Score 36.8/100 (F grade). Based on analysis of 2 trust dimensions, it is has significant safety risks. Last updated: 2026-04-01.
Exercise caution with Headers. Headers is a Firefox add-on with a Nerq Trust Score of 36.8/100 (F), based on 3 independent data dimensions. It is below the recommended threshold of 70. Security: 65/100. Popularity: 30/100. Data sourced from addons.mozilla.org metadata, permissions analysis, and source code availability. Last updated: 2026-04-01. Machine-readable data (JSON).
Is Headers safe?
NO — USE WITH CAUTION — Headers has a Nerq Trust Score of 36.8/100 (F). It has below-average trust signals with significant gaps in security, maintenance, or documentation. Not recommended for production use without thorough manual review and additional security measures.
What is Headers's trust score?
Headers has a Nerq Trust Score of 36.8/100, earning a F grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Headers?
Headers's strongest signal is security at 65/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.
What is Headers and who maintains it?
| Author | Kuba Zygmunt |
| Category | firefox |
| Source | N/A |
Headers Across Platforms
Same developer/company in other registries:
Similar Firefox by Trust Score
Safety Guide: Headers
What is Headers?
Headers is a Firefox add-on — Take control of your web requests with the Headers extension for Firefox! This powerful tool allows you to effortlessly add, modify, or remove HTTP headers for any website you visit, giving you enhanc.
How to Verify Safety
Review permissions on addons.mozilla.org. Check if source code is available.
You can also check the trust score via API: GET /v1/preflight?target=Headers
Key Safety Concerns for Firefox add-ons
When evaluating any Firefox add-on, watch for: excessive permissions, data harvesting.
Trust Assessment
Headers has a Nerq Trust Score of 37/100 (F) and has not yet reached Nerq trust threshold (70+). This score is based on automated analysis of security, maintenance, community, and quality signals.
Key Takeaways
- Headers has a Trust Score of 37/100 (F).
- Review carefully before use — below trust threshold.
- Always verify independently using the Nerq API.
Frequently Asked Questions
Is Headers safe?
What is Headers's trust score?
What are safer alternatives to Headers?
What permissions does Headers need?
Is Headers open source?
Popular in firefox
Browse Categories
Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.