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firefox.lt

Grade A · 80/100 · 4/6 security headers present

Security Score

A
80/ 100

Security Headers

4/ 6

CSP Violations

NoViolations

Issues Found

0Issues

Recommendations

0Available

CSP Analysis

Content Security PolicyHIGH
style-src 'self' www.mozilla.org; media-src 'self' assets.mozilla.net videos.cdn.mozilla.net www.mozilla.org; connect-src 'self' https://accounts.firefox.com/ https://basket.mozilla.org o1069899.ingest.sentry.io o1069899.sentry.io region1.google-analytics.com www.google-analytics.com www.googletagmanager.com www.mozilla.org/submit/bedrock/; script-src 'self' 'unsafe-eval' 'unsafe-inline' js.stripe.com s.ytimg.com tagmanager.google.com www.google-analytics.com www.googletagmanager.com www.mozilla.org www.youtube.com; frame-src 'self' accounts.firefox.com js.stripe.com www.google-analytics.com www.googletagmanager.com www.youtube.com; default-src 'self' *.mozilla.org; img-src 'self' blog.mozilla.org data: images.ctfassets.net www.google-analytics.com www.googletagmanager.com www.mozilla.org; upgrade-insecure-requests; base-uri 'none'; frame-ancestors 'none'; font-src 'self' www.mozilla.org; object-src 'none'; form-action 'self' https://accounts.firefox.com/ https://basket.mozilla.org
Directive Analysis
style-srcLOW
'self' www.mozilla.org
•Missing recommended values for style-src: sha512-, nonce-, sha256-, self, sha384-
media-srcLOW
videos.cdn.mozilla.net assets.mozilla.net 'self' www.mozilla.org
•Missing recommended values for media-src: self
connect-srcLOW
https://accounts.firefox.com/ https://basket.mozilla.org www.google-analytics.com 'self' www.mozilla.org/submit/bedrock/ region1.google-analytics.com o1069899.sentry.io www.googletagmanager.com o1069899.ingest.sentry.io
•Missing recommended values for connect-src: self
script-srcHIGH
www.google-analytics.com 'self' tagmanager.google.com 'unsafe-inline' www.youtube.com js.stripe.com www.googletagmanager.com 'unsafe-eval' www.mozilla.org s.ytimg.com
•Unsafe inline execution allowed in script-src
•Unsafe eval() execution allowed in script-src
•Missing recommended values for script-src: sha512-, nonce-, sha256-, self, sha384-
•No nonces or hashes used for script-src
frame-srcLOW
www.google-analytics.com 'self' www.youtube.com js.stripe.com www.googletagmanager.com accounts.firefox.com
•Missing recommended values for frame-src: self
default-srcLOW
'self' *.mozilla.org
•Missing recommended values for default-src: self
img-srcLOW
blog.mozilla.org www.google-analytics.com 'self' www.googletagmanager.com data: www.mozilla.org images.ctfassets.net
•Missing recommended values for img-src: self
upgrade-insecure-requestsLOW
base-uriLOW
'none'
•Missing recommended values for base-uri: self, none
frame-ancestorsLOW
'none'
•Missing recommended values for frame-ancestors: self, none
font-srcLOW
'self' www.mozilla.org
•Missing recommended values for font-src: self
object-srcLOW
'none'
•Missing recommended values for object-src: none
form-actionLOW
https://accounts.firefox.com/ 'self' https://basket.mozilla.org
•Missing recommended values for form-action: self
Content Security PolicyHIGH
style-src 'self' 'unsafe-inline' www.mozilla.org; media-src 'self' assets.mozilla.net videos.cdn.mozilla.net www.mozilla.org; connect-src 'self' https://accounts.firefox.com/ https://basket.mozilla.org o1069899.ingest.sentry.io o1069899.sentry.io region1.google-analytics.com www.google-analytics.com www.googletagmanager.com www.mozilla.org/submit/bedrock/; script-src 'self' 'unsafe-eval' 'unsafe-inline' js.stripe.com s.ytimg.com tagmanager.google.com www.google-analytics.com www.googletagmanager.com www.mozilla.org www.youtube.com; frame-src 'self' accounts.firefox.com js.stripe.com www.google-analytics.com www.googletagmanager.com www.youtube.com; default-src 'self' *.mozilla.org; img-src 'self' blog.mozilla.org data: images.ctfassets.net www.google-analytics.com www.googletagmanager.com www.mozilla.org; upgrade-insecure-requests; base-uri 'none'; frame-ancestors 'none'; font-src 'self' www.mozilla.org; object-src 'none'; form-action 'self' https://accounts.firefox.com/ https://basket.mozilla.org
Directive Analysis
style-srcHIGH
'self' 'unsafe-inline' www.mozilla.org
•Unsafe inline execution allowed in style-src
•Missing recommended values for style-src: sha512-, nonce-, sha256-, self, sha384-
media-srcLOW
videos.cdn.mozilla.net assets.mozilla.net 'self' www.mozilla.org
•Missing recommended values for media-src: self
connect-srcLOW
https://accounts.firefox.com/ https://basket.mozilla.org www.google-analytics.com 'self' www.mozilla.org/submit/bedrock/ region1.google-analytics.com o1069899.sentry.io www.googletagmanager.com o1069899.ingest.sentry.io
•Missing recommended values for connect-src: self
script-srcHIGH
www.google-analytics.com 'self' tagmanager.google.com 'unsafe-inline' www.youtube.com js.stripe.com www.googletagmanager.com 'unsafe-eval' www.mozilla.org s.ytimg.com
•Unsafe inline execution allowed in script-src
•Unsafe eval() execution allowed in script-src
•Missing recommended values for script-src: sha512-, nonce-, sha256-, self, sha384-
•No nonces or hashes used for script-src
frame-srcLOW
www.google-analytics.com 'self' www.youtube.com js.stripe.com www.googletagmanager.com accounts.firefox.com
•Missing recommended values for frame-src: self
default-srcLOW
'self' *.mozilla.org
•Missing recommended values for default-src: self
img-srcLOW
blog.mozilla.org www.google-analytics.com 'self' www.googletagmanager.com data: www.mozilla.org images.ctfassets.net
•Missing recommended values for img-src: self
upgrade-insecure-requestsLOW
base-uriLOW
'none'
•Missing recommended values for base-uri: self, none
frame-ancestorsLOW
'none'
•Missing recommended values for frame-ancestors: self, none
font-srcLOW
'self' www.mozilla.org
•Missing recommended values for font-src: self
object-srcLOW
'none'
•Missing recommended values for object-src: none
form-actionLOW
https://accounts.firefox.com/ 'self' https://basket.mozilla.org
•Missing recommended values for form-action: self

Security Headers

✗Permissions-PolicyMissing

Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.

How to add it:

nginx
add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;
apache
Header always set Permissions-Policy "camera=(), microphone=(), geolocation=()"
cloudflare
Rules > Transform Rules > HTTP Response Header Modification > Set Permissions-Policy value
✓Referrer-PolicyPresent

strict-origin-when-cross-origin

Controls how much referrer information is sent with requests, preventing data leaks to third parties.

✓Strict-Transport-SecurityPresent

max-age=31536000

Forces browsers to use HTTPS for all future requests, preventing man-in-the-middle attacks and SSL stripping.

✓X-Content-Type-OptionsPresent

nosniff

Prevents browsers from MIME-sniffing responses away from the declared Content-Type, blocking drive-by downloads.

✓X-Frame-OptionsPresent

DENY

Prevents the page from being embedded in iframes, protecting against clickjacking attacks.

✗X-XSS-ProtectionMissing

Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.

How to add it:

nginx
add_header X-XSS-Protection "0" always;
apache
Header always set X-XSS-Protection "0"
cloudflare
Rules > Transform Rules > HTTP Response Header Modification > Set X-XSS-Protection to "0"

2 recommended security headers are missing on firefox.lt.

Beyond headers: infrastructure exposure

via OSN, our sister project

Security headers protect the browser. OSN maps what's exposed underneath — servers, open ports, known CVEs, DNS and WHOIS.

See what the internet sees about firefox.ltWeak headers often come with other exposure — check the full picture.
See full exposure report on OSN →Free, no signup.

firefox.lt

3 scans since 7/15/2025

A

Latest: 80/100

Total Scans

3

Latest Score

80/100

First Scan

7/15/2025

Last Scan

7/15/2025

Score Trend

Security score progression over 2 scans

Scan History

DateScoreCSPHeadersIssuesAction
Jul 15, 2025
A (80)
No
4/60View →
Jul 15, 2025
A (80)
No
4/60View →

Show off your security grade

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HeaderTest security grade: A (80/100) for firefox.lt
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Markdown
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