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Firefox
Firefox is a fast, private web browser from Mozilla, available on Windows, macOS, Linux, iOS, and Android. It blocks trackers automatically, offers optional AI features, and does not sell personal data.
- Founded
- 2007
- Headquarters
- All over the world
- Company size
- Not disclosed
- Products tracked
- 3
Products by Firefox
Pricing for Firefox
Free
This is the broad commercial model reported for Firefox. Product-level terms are listed below when available.
- Entry option
- Free plan
- Pricing model
- Free
- Entry option
- Free plan
- Starting price
- price: 0, priceCurrency: USD
- Pricing model
- Free
- Entry option
- Free plan
- Starting price
- price 0, currency USD
Trust profile
Security and compliance
No compliance claims have been published for this company.
Enhanced Tracking Protection (ETP) — automatic cross-site tracker blocking
Total Cookie Protection (TCP) — cookies locked to originating site
End-to-end encryption for sync data (history, bookmarks) before leaving device
Private Window mode — deletes session data on close, blocks tracker scripts, fingerprinting protections, opt-out of data sale/sharing
On-device AI models — data stays on user's device for Link Previews and Smart Tab Groups
Third-party AI chatbot isolation — Mozilla has no access to user chats with chatbot provider
Privacy-first ad architecture — prevents advertisers from learning user identity
Manifest v2 extension support for ad blockers
Data encrypted by default across desktop, mobile, and tablet