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Firefox is a free, open-source web browser developed by Mozilla. It is available on desktop and mobile platforms and is widely known for its privacy controls, customization options, and independent browser engine. Mozilla positions Firefox as a user-focused browser with an emphasis on privacy, transparency, and open web standards.
This page compiles verified Firefox statistics and facts, including monthly users, market share references, download milestones, language availability, and selected historical Mozilla metrics. Figures are labeled by year because Mozilla does not publish every statistic on a fixed schedule.
Firefox Key Statistics
Mozilla’s Firefox Public Data Report provides an official user activity dashboard for Firefox, and a widely cited dashboard figure shows 204 million monthly users (2022). Mozilla’s Firefox download page also states Firefox is available in more than 90 languages.
Firefox Statistics at a Glance
| Metric | Figure | Period | Source |
|---|---|---|---|
| Firefox monthly users | 204 million | 2022 | Firefox Public Data Report |
| Firefox availability by language | More than 90 languages | Current Firefox download page snapshot | Firefox Download Languages |
| Firefox worldwide browser market share (historical reference) | 11.7% | 2015 | VentureBeat |
| Firefox for Android downloads (milestone) | 100 million | 2015 | Mozilla Blog |
Firefox Statistics and Facts
How many people use Firefox? 204 million monthly users (2022)
Firefox Monthly Active Users (official tracking source): Mozilla’s Firefox Public Data Report user activity dashboard (updated over time)
Number of times Firefox Focus for Android has been downloaded: 1 million (2017)
Firefox’s share of the worldwide internet browser market (historical reference): 11.7% (2015)
Number of Firefox for Android downloads: 100 million (2015)
Number of languages Firefox is available in: more than 90 languages (current Firefox download page snapshot); 89 languages (2015 historical Mozilla press reference)
Percentage of the Firefox code that was written by volunteers (historical Mozilla press reference): approximately 40% (2015)
Percentage of Firefox users that used non-English versions (historical Mozilla press reference): more than 50% (2015)
Number of Firefox employees / Mozilla staff (historical media reference): about 1,000 (2020)
Firefox Milestones Timeline
- 2015: Mozilla reported Firefox for Android crossed 100 million downloads.
- 2017: Mozilla reported Firefox Focus for Android reached 1 million downloads.
- 2020: Media reports cited Mozilla staff reductions and a workforce of about 1,000 employees.
- 2022: Firefox Public Data Report dashboard was widely cited at 204 million monthly users.
- 2026: Firefox’s download page states the browser is available in more than 90 languages.
What These Firefox Statistics Show
Firefox’s publicly available metrics are spread across multiple sources: Mozilla’s live Firefox Public Data Report dashboards for user activity, Mozilla blog posts for milestone announcements, and older media coverage for historical market share and staffing references. For current user activity, the Firefox Public Data Report is the strongest direct source because it is Mozilla’s own public dashboard.
FAQ
How many people use Firefox?
A widely cited figure from Mozilla’s Firefox Public Data Report is 204 million monthly users (2022). Mozilla’s public dashboard is the best source to monitor updated Firefox user activity over time.
Is Firefox still available in many languages?
Yes. Mozilla’s Firefox download page says Firefox is available in more than 90 languages.
How many downloads does Firefox have on Android?
Mozilla reported Firefox for Android crossed 100 million downloads in 2015. This is a historical milestone and not a current total.
What is Firefox’s browser market share?
This page includes a historical media reference of 11.7% worldwide browser market share in 2015. Market share changes frequently, so older figures should be read as historical snapshots.
Sources and References
- Firefox Public Data Report — User Activity dashboard (Mozilla)
- Firefox Public Data Report (Mozilla)
- Firefox download page (language availability)
- Mozilla Blog: Firefox Focus for Android 1M downloads
- Mozilla Blog: Firefox for Android crosses 100M downloads
- Mozilla Press (historical at-a-glance figures)
- VentureBeat: historical browser market share reference
- CNET: historical Mozilla staffing reference
