Helium Browser vs Mozilla Firefox
| Helium Browser | Mozilla Firefox | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | Yes | Yes |
| Platforms | Windows, macOS, Linux | Android, extension, iOS, Linux, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Supported platforms | both | both |
| Browser engine | chromium | gecko |
| Built-in ad blocking | Yes | Yes |
| Extension support | chrome_store | own_store |
| Cross-device sync | No | Yes |
| Open source | Yes | Yes |
| Tracking protection | — | standard |
Both are listed in Best Web Browsers. On Freedom251, Mozilla Firefox scores higher on our published basis.