Firefox
Free, open source web browser for desktop and mobile with Enhanced Tracking Protection on by default, extensions, sync across devices and container tabs.
Compare
Security headers: A, 85 out of 100
Number 23 of 138 in the ranking. Missing 2 of the 9 headers we check.
Meets the B minimum (70/100) in our RFP clause.
Missing 2
-
Permissions-Policy 0 of 10
Switches off browser features the product does not use, such as camera, microphone, location and payments, for the page and anything embedded in it.
Without it: Any script or iframe on the page, including third-party ads and chat widgets, can ask the user for camera, microphone or location access under the vendor's name.
-
Cross-Origin-Resource-Policy 0 of 5
Tells browsers which sites may load this site's resources.
Without it: Other sites can pull the product's responses into their own pages, which makes side-channel leaks of what a signed-in user can see easier.
Sent 7
-
Content-Security-Policy 25 of 25
form-action 'self' https://accounts.firefox.com/ https://basket.mozilla.org; style-src 'self' www.firefox.com; script-src 'self' 'unsafe-eval' 'unsafe-inline' *.google-analytics.com *.googletagmanager.com google-analytics.com googletagmanager.com https://gtm.firefox.com pa.firefox.com s.ytimg.com tagmanager.google.com www.firefox.com www.youtube.com; frame-ancestors 'none'; img-src 'self' *.google-analytics.com *.googletagmanager.com data: google-analytics.com googletagmanager.com https://gtm.firefox.com www.firefox.com www.mozilla.org; frame-src 'self' accounts.firefox.com https://gtm.firefox.com www.google-analytics.com www.googletagmanager.com www.youtube-nocookie.com www.youtube.com; base-uri 'none'; upgrade-insecure-requests; font-src 'self' www.firefox.com; default-src 'self' www.firefox.com; object-src 'none'; connect-src 'self' *.analytics.google.com *.google-analytics.com *.googletagmanager.com analytics.google.com basket.mozilla.org google-analytics.com googletagmanager.com gtm.firefox.com https://accounts.firefox.com/ https://basket.mozilla.org https://gtm.firefox.com o1069899.ingest.sentry.io o1069899.ingest.us.sentry.io o1069899.sentry.io pa.firefox.com www.firefox.com; media-src 'self' assets.mozilla.net videos.cdn.mozilla.net www.firefox.com www.mozilla.org
-
Strict-Transport-Security 20 of 20
max-age=31536000
-
X-Content-Type-Options 10 of 10
nosniff
-
Frame protection 10 of 10
DENY
-
Referrer-Policy 10 of 10
strict-origin-when-cross-origin
-
Cross-Origin-Opener-Policy 5 of 5
same-origin
-
No version disclosure 5 of 5
server: granian