diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1515,6 +1515,7 @@ Here are some open source and truly private (no personal data and/or credit card
 - [Ungoogled Chromium](https://github.com/ungoogled-software/ungoogled-chromium) - A lightweight approach to removing Google web service dependency. Ungoogled-chromium is Google Chromium, sans dependency on Google web services.
 - [Brave](https://brave.com/) - Brave offers a pretty good out-of-the-box set of privacy and tracker protections.
 - [Firefox](https://www.mozilla.org/en-US/firefox/new/) - Open Source, independent browser. It needs some [hardening and tweaking](https://anonymousplanet.org/guide.html#firefox-1) to achieve great privacy.
+  - [Zen Browser](https://zen-browser.app/) - [Open Source](https://github.com/zen-browser/desktop/), Privacy-focused, non-tracking Firefox fork with arc-like customisation.
   - [LibreWolf](https://librewolf.net/) - Privacy-focused Firefox fork.
 - [Tor Browser](https://www.torproject.org/)
 - [Mullvad Browser](https://mullvad.net/en/browser/) - Browser with the privacy and security implications of the Tor Browser, without the use of the Tor network.