Is Firefox Fast & Private Browser Safe?
Firefox Fast & Private Browser — Nerq Trust Score 66.0/100 (B- grade). Based on analysis of 2 trust dimensions, it is generally safe but has some concerns. Last updated: 2026-04-16.
Use Firefox Fast & Private Browser with some caution. Firefox Fast & Private Browser is a Android app with a Nerq Trust Score of 66.0/100 (B-), based on 3 independent data dimensions. Below the recommended threshold of 70. Security: 70/100. Popularity: 95/100. Data sourced from Google Play metadata, Data Safety section, Exodus Privacy tracker analysis, and user ratings. Last updated: 2026-04-16. Machine-readable data (JSON).
Is Firefox Fast & Private Browser safe?
CAUTION — Firefox Fast & Private Browser has a Nerq Trust Score of 66.0/100 (B-). 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 Firefox Fast & Private Browser's trust score?
Firefox Fast & Private Browser has a Nerq Trust Score of 66.0/100, earning a B- grade. This score is based on 2 independently measured dimensions including security, maintenance, and community adoption.
What are the key security findings for Firefox Fast & Private Browser?
Firefox Fast & Private Browser's strongest signal is popularity at 95/100. No known vulnerabilities have been detected. It has not yet reached the Nerq Verified threshold of 70+.
What is Firefox Fast & Private Browser and who maintains it?
| Author | Mozilla |
| Category | Android Apps |
| Source | N/A |
Firefox Fast & Private Browser Across Platforms
Same developer/company in other registries:
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Safety Guide: Firefox Fast & Private Browser
What is Firefox Fast & Private Browser?
Firefox Fast & Private Browser is a Android app — Private by default. Less tracking. Peace of mind built in..
How to Verify Safety
Review Data Safety section in Google Play. Check permissions and ad trackers.
You can also check the trust score via API: GET /v1/preflight?target=Firefox Fast & Private Browser
Key Safety Concerns for Android app
When evaluating any Android app, watch for: excessive permissions, data collection, ad trackers, background data usage.
Trust Assessment
Firefox Fast & Private Browser has a Nerq Trust Score of 66/100 (B-) 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
- Firefox Fast & Private Browser has a Trust Score of 66/100 (B-).
- Review carefully before use — below trust threshold.
- Always verify independently using the Nerq API.
Detailed Score Analysis
| Dimension | Score |
|---|---|
| Security | 70/100 |
| Privacy | 65/100 |
| Reliability | 90/100 |
| Transparency | 50/100 |
| Maintenance | 60/100 |
Based on 5 dimensions. Data from Google Play metadata, Data Safety section, Exodus Privacy tracker analysis, and user ratings.
What data does Firefox Fast & Private Browser collect?
Firefox Fast & Private Browser is published by Mozilla on Google Play, with approximately 448,142,365 downloads.
Privacy score: 65/100. Users should review the app's privacy labels (available on the Google Play listing) to understand what data categories are collected, including identifiers, usage data, and location information.
Before granting permissions, check whether the app requests access to camera, microphone, contacts, or location — and whether each permission is necessary for the app's core functionality.
Full analysis: Firefox Fast & Private Browser Privacy Report · Privacy review
Is Firefox Fast & Private Browser secure?
Security score: 70/100. This meets the recommended security threshold for production use.
Nerq monitors this entity against NVD, OSV.dev, and registry-specific vulnerability databases for ongoing security assessment.
Full analysis: Firefox Fast & Private Browser Security Report
Firefox Fast & Private Browser Across Platforms
Same developer/company in other registries:
How we calculated this score
Firefox Fast & Private Browser's trust score of 66.0/100 (B-) is computed from Google Play metadata, Data Safety section, Exodus Privacy tracker analysis, and user ratings. The score reflects 5 independent dimensions: security (70/100), privacy (65/100), reliability (90/100), transparency (50/100), maintenance (60/100). Each dimension is weighted equally to produce the composite trust score.
Nerq analyzes over 7.5 million entities across 26 registries using the same methodology, enabling direct cross-entity comparison. Scores are updated continuously as new data becomes available.
This page was last reviewed on April 16, 2026. Data version: 1.0.
Full methodology documentation · Machine-readable data (JSON API)
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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.