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Security report for getfirefox.com

Mozilla · Technology · N/a

Low risk. No critical or high findings.

Security score

86/100

Risk levelLow

0–100, higher is better. How it is calculated

Mozilla operates the Firefox web browser, a widely recognized and trusted open-source browser focused on privacy and user control. The website serves as the primary distribution and information portal for Firefox across desktop and mobile platforms. It demonstrates a mature digital presence with comprehensive content, strong branding, and a user-friendly interface. The technical infrastructure leverages modern web technologies including JavaScript frameworks and tracking tools like Sentry and Google Tag Manager, ensuring performance and error monitoring. Security posture is solid with HTTPS enforced and privacy mechanisms such as cookie consent banners, although explicit security policies and incident response contacts are not prominently provided. The absence of WHOIS data reduces transparency but does not detract from the site's legitimacy given the strong brand and ecosystem presence. Overall, the site is professional, secure, and compliant with privacy regulations.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

No critical or high findings. These medium findings are worth fixing next.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • Medium

      Missing X-XSS-Protection header

      Legacy XSS protection (deprecated but still recommended)

      What to do: Add "X-XSS-Protection: 1; mode=block"

    • Medium

      Missing Permissions-Policy header

      Controls browser features and APIs

      What to do: Implement a Permissions-Policy to restrict feature access

      • OWASP Secure Headers: OWASP Secure Headers Project recommends Permissions-Policy: accelerometer=(), autoplay=(), camera=(), cross-origin-isolated=(),…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Medium

      Privacy policy may not be GDPR compliant

      Privacy policy lacks explicit GDPR compliance elements

      What to do: Update privacy policy to explicitly address GDPR requirements and user rights

  3. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Medium

      No DKIM record found

      DKIM adds cryptographic signatures to emails

      What to do: Configure DKIM with your email provider

    • Medium

      No MTA-STS Policy

      MTA-STS enforces TLS for email delivery

      What to do: Implement MTA-STS to prevent downgrade attacks

Keep watching getfirefox.com

This scan found 13 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
95
Security headers
75
Email security
70
DNS health
90
Network security
100
GDPR outside view
83
Average
86

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Mozilla's Firefox browser holds a significant position in the technology sector as a leading open-source browser emphasizing privacy and customization. The business model is non-profit, focusing on software development and community engagement rather than direct monetization. The target audience is broad, encompassing general internet users seeking privacy and performance. Mozilla maintains a robust partnership and community ecosystem, including add-ons, support forums, and developer resources. The website reflects this with extensive resources, multilingual support, and active social media channels. Growth indicators include continuous feature updates and mobile platform support. Strategic observations highlight Mozilla's commitment to privacy and open web standards as competitive advantages.

Security posture

The website exhibits a mature security posture with enforced HTTPS, privacy-focused cookie consent, and use of reputable analytics and error tracking services. However, there is a lack of explicit security policy documentation and dedicated incident response contact information, which are best practices for transparency and user trust. No vulnerabilities or exposed sensitive data were detected in the content. Compliance with GDPR is indicated through privacy notices and cookie management. The security score is strong but could be improved by publishing detailed security policies and providing clear channels for reporting security incidents.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Provide explicit incident response contact information such as security@ or abuse@ email addresses.
  3. Implement and disclose HTTP security headers (e.g., Content-Security-Policy, X-Frame-Options) for enhanced protection.
  4. Enhance transparency by publishing WHOIS or domain registration details if possible.
  5. Continue to maintain and improve privacy compliance and user consent mechanisms.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mozilla
Description
Firefox is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy. Firefox offers faster page loading, less memory usage, and customizable features for desktop and mobile platforms.
Key services
Firefox Browser for desktop and mobile, Add-ons and extensions, Privacy and security features
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Sentry (error tracking), Google Tag Manager
Platforms
Desktop browsers (Windows, Mac, Linux), Mobile browsers (Android, iOS)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced (implied by URLs)
  • Cookie consent banner for privacy compliance
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Sentry, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Sentry
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. Strong privacy and cookie consent mechanisms are implemented.
  3. No direct contact emails or phone numbers found on the main site.
  4. WHOIS data is missing, which is unusual but not uncommon for large brands using privacy or proxy services.
  5. Website uses modern web technologies and good SEO practices.
  6. No security policy or incident response contact information explicitly provided.
  7. Social media presence is strong with official verified accounts linked.
Technical notes

Notes

The website is built using modern web standards with extensive use of JavaScript and CSS for a responsive and accessible user experience. It integrates third-party services such as Sentry for error tracking and Google Tag Manager for analytics and marketing. The site is optimized for performance and mobile devices, with clear navigation and multilingual support. No CMS or hosting provider details were explicitly detected. The technical implementation is robust with no visible technical debt or performance bottlenecks. Opportunities exist to improve security header transparency and to document technical security controls publicly.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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