Is Jack Safe?
Jack — Nerq Trust Score 31.4/100 (F grade). Based on analysis of 2 trust dimensions, it is has significant safety risks. Last updated: 2026-04-01.
Exercise caution with Jack. Jack is a Firefox add-on with a Nerq Trust Score of 31.4/100 (F), based on 3 independent data dimensions. It is below the recommended threshold of 70. Security: 65/100. Popularity: 18/100. Data sourced from addons.mozilla.org metadata, permissions analysis, and source code availability. Last updated: 2026-04-01. Machine-readable data (JSON).
Is Jack safe?
NO — USE WITH CAUTION — Jack has a Nerq Trust Score of 31.4/100 (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 Jack's trust score?
Jack has a Nerq Trust Score of 31.4/100, 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 Jack?
Jack'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 Jack and who maintains it?
| Author | Augustin LAOUAR |
| Category | firefox |
| Source | N/A |
Jack Across Platforms
Same developer/company in other registries:
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Safety Guide: Jack
What is Jack?
Jack is a Firefox add-on — Manage temporary e-mails addresses and passwords..
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=Jack
Key Safety Concerns for Firefox add-ons
When evaluating any Firefox add-on, watch for: excessive permissions, data harvesting.
Trust Assessment
Jack has a Nerq Trust Score of 31/100 (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
- Jack has a Trust Score of 31/100 (F).
- 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.