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 Build is ideal for developers and privacy-focused users, offering extensive customization and advanced features. In contrast, Opera caters to casual users with its built-in VPN and messenger, providing a more user-friendly experience.