Nightly builds are a good thing, they provide immediate feedback to developers if they broke the build. Having a nightly build means that the software stable and is likely to build for new users. Software that is not built regularly is difficult to release. Developed by Mozilla
License: Open Source
Firefox Nightly is geared towards users who want to test the latest features and improvements in a stable environment, while Waterfox focuses on privacy and legacy support for older extensions. Users looking for cutting-edge features may prefer Nightly, whereas those seeking a lightweight, privacy-focused browser may opt for Waterfox.