Is Cipher Safe?
Use Cipher with some caution. Cipher is a Firefox add-on with a Nerq Trust Score of 50.5/100 (C-), based on 3 independent data dimensions. It is below the recommended threshold of 70. Security: 90/100. Popularity: 15/100. Data sourced from addons.mozilla.org metadata, permissions analysis, and source code availability. Last updated: 2026-03-24. Machine-readable data (JSON).
Is Cipher safe?
CAUTION — Cipher has a Nerq Trust Score of 50.5/100 (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.
Trust Score Breakdown
Key Findings
Details
| Author | Javier Junquera |
| Category | firefox |
| Source | N/A |
Cipher Across Platforms
Same developer/company in other registries:
Safety Guide: Cipher
What is Cipher?
Cipher is a Firefox add-on — Browser extension for encrypt/decrypt editable fields like emails, pastes, notes... Encrypt text from context menu..
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=Cipher
Key Safety Concerns for Firefox add-ons
When evaluating any Firefox add-on, watch for: excessive permissions, data harvesting.
Trust Assessment
Cipher has a Nerq Trust Score of 50/100 (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
- Cipher has a Trust Score of 50/100 (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.