**Firefox**provides strong privacy settings such as [Enhanced Tracking Protection](https://support.mozilla.org/kb/enhanced-tracking-protection-firefox-desktop), which can help block various [types of tracking](https://support.mozilla.org/kb/enhanced-tracking-protection-firefox-desktop#w_what-enhanced-tracking-protection-blocks).
The [Firefox sync](https://hacks.mozilla.org/2018/11/firefox-sync-privacy/) service is end-to-end encrypted.
#### Extensions
We generally do not recommend installing any extensions as they increase your [attack surface](https://en.wikipedia.org/wiki/Attack_surface); however, if you want content blocking, [uBlock Origin](/browsers/#additional-resources) might be useful to you. The extension is also a 🏆️[Recommended Extension](https://support.mozilla.org/kb/add-on-badges#w_recommended-extensions) by Mozilla.
The [Arkenfox project](https://github.com/arkenfox/user.js) provides a set of carefully considered options for Firefox. These options are quite strict but a few are subjective and may cause some websites to not work properly. You can easily change these settings to suit your needs. We **strongly recommend** reading through their [wiki](https://github.com/arkenfox/user.js/wiki). Arkenfox also enables [container](https://support.mozilla.org/en-US/kb/containers#w_for-advanced-users) support.