Is Firefox safe?

Our pick

Yes. Firefox is a legitimate tool and IsLegit's pick for: Pick a web browser. Independent browser that runs the full uBlock Origin.

Report card

Site checked 16 Oct 2026

Free
Open source
Secure connection (HTTPS)
Homepage contacts no ad networks
2 trackers: Google Analytics and Google Tag Manager
Full ad blocker support
Made by a nonprofit foundation
Strong tracking protection
Turn off sponsored shortcuts on the new tab page

Works on: Windows, Mac, Linux, Android, iPhone · Free

Where it shows up

Pick a web browser Our pick

Alternatives

Brave

Good

Chrome-like browser with ad blocking built in.

Free Windows, Mac, Linux, Android, iPhone No ads · No trackers

Report card Open

Google Chrome

Good

Fast and popular, but limits ad blockers.

Free Windows, Mac, Linux, Android, iPhone 1 ad network · 2 trackers

Report card Open

Safari

Good

Apple's private-by-default browser.

Built in Mac, iPhone No ads · No trackers

Report card Open

All Firefox alternatives

Questions

Does Firefox show ads or track you?: Its homepage loaded no ad networks and Google Analytics and Google Tag Manager trackers in our automated check on 16 Oct 2026.
Is Firefox free?: Yes, Firefox is free.