Is Vimium Safe?
Vimium — Nerq Trust Score 55.0/100 (C grade). Based on analysis of 2 trust dimensions, it is has notable safety concerns. Last updated: 2026-06-29.
Use Vimium with some caution. Vimium is a Firefox extension with a Nerq Trust Score of 55.0/100 (C), based on 3 independent data dimensions. Below the recommended threshold of 70. Security: 90/100. Popularity: 45/100. Data sourced from addons.mozilla.org metadata, permissions analysis, and source code availability. Last updated: 2026-03-22. Machine-readable data (JSON).
Is Vimium safe?
CAUTION — Vimium has a Nerq Trust Score of 55.0/100 (C). It has moderate trust signals but shows some areas of concern that warrant attention. Suitable for development use — review security and maintenance signals before production deployment.
What is Vimium's trust score?
Vimium has a Nerq Trust Score of 55.0/100, earning a C grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Vimium?
Vimium's strongest signal is security at 90/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.
What is Vimium and who maintains it?
| Author | Phil Crosby |
| Category | Firefox Add-ons |
| Source | N/A |
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Safety Guide: Vimium
What is Vimium?
Vimium is a Firefox add-on — The Hacker's Browser. Vimium provides keyboard shortcuts for navigation and control in the spirit of Vim..
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=Vimium
Key Safety Concerns for Firefox add-on
When evaluating any Firefox add-on, watch for: excessive permissions, data harvesting.
Trust Assessment
Vimium has a Nerq Trust Score of 55/100 (C) 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
- Vimium has a Trust Score of 55/100 (C).
- Review carefully before use — below trust threshold.
- Always verify independently using the Nerq API.
Frequently Asked Questions
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Disclaimer: Nerq trust scores are automated assessments based on publicly available signals. They are not endorsements or guarantees. Always conduct your own due diligence.