Head-to-head · Web Browsers
Mozilla Firefox vs Waterfox
Mozilla Firefox leads on 0 checks, Waterfox on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreMozilla Firefox · 9.1/10
- Free planboth
Mozilla Firefox scores higher on our rubric for web browsers: 9.1 against 8.5 out of 10; our editors rank them #3 and #9.
On tracking protection, Waterfox gives you Advanced where Mozilla Firefox offers Standard.
Mozilla Firefox is the better fit for open-source privacy-conscious everyday browsing. Waterfox is the better fit for open-source users wanting strong privacy controls.
- Mozilla Firefox fits best
Open-source privacy-conscious everyday browsing
- Waterfox fits best
Open-source users wanting strong privacy controls
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Side by side
| Feature | Mozilla Firefox 9.1/10 Visit ↗ | Waterfox 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.1 | 8.5 |
| Ranking | #3 in Web Browsers | #9 in Web Browsers |
| Best for | Open-source privacy-conscious everyday browsing | Open-source users wanting strong privacy controls |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop, Mobile | Desktop, Mobile |
| Platforms | Windows, macOS, Linux, iOS, Android | Windows, macOS, Linux, Android |
| Support | Community, Docs | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business |
| Features Mozilla Firefox 3/3 · Waterfox 3/3 | ||
| Built-in ad blocking | ✓ | ✓ |
| Cross-device sync | ✓ | ✓ |
| Open source | ✓ | ✓ |
| Specs | ||
| Supported platforms | Both | Both |
| Browser engine | Gecko | Gecko |
| Tracking protection | Standard | Advanced |
| Extension support | Own_store | Not checked yet |
| Our review | ||
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| Our verdict | Mozilla Firefox is a free, open-source web browser for desktop and mobile users who want everyday browsing with built-in privacy controls. It runs on Windows, macOS, Linux, iOS and Android, using Mozilla’s Gecko rendering engine. Core… Read the review → |
Waterfox is a free, open-source web browser from BrowserWorks Ltd, based on Mozilla Firefox and the Gecko engine. It is designed for people who want detailed privacy controls alongside everyday browsing features. Available on Windows,… Read the review → |
Strengths and trade-offs
Mozilla Firefox — where it wins
- Enhanced Tracking Protection and Total Cookie Protection
- Available on Windows, macOS, Linux, iOS and Android
- Syncs bookmarks, passwords, history and open tabs across devices
Where it doesn't
- Sync requires a Mozilla account
- Extensions and themes use Mozilla’s own add-on store
- No paid tier for additional browser features
Waterfox — where it wins
- Advanced tracking protection with Standard, Strict, and Custom modes
- Open source with built-in ad and tracker blocking
- Syncs bookmarks, passwords, history, tabs, and preferences
Where it doesn't
- No premium tier or payment options are offered
- Synchronization depends on a Mozilla account and Mozilla Sync
- No AI features are included
- Mozilla Firefox9.1/10 · Free plan
A mature, privacy-focused browser for everyday browsing across desktop and mobile.
Visit FirefoxFull verdict → - Waterfox8.5/10 · Free plan
Waterfox offers open-source browsing with detailed privacy controls at no cost.
Visit WaterfoxFull verdict →
More comparisons
- Google Chrome vs Mozilla Firefox
- Microsoft Edge vs Mozilla Firefox
- Mozilla Firefox vs Brave Browser
- Mozilla Firefox vs Opera
- Mozilla Firefox vs Vivaldi
- Mozilla Firefox vs Safari
- Mozilla Firefox vs Tor Browser
All web browsers comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update








