Just using Nightly and sending telemetry data is already of great help to all Mozilla developers as it allows them to get usage statistics on the features they work on. Unlike Firefox on the Release channel, Nightly sends by default anonymized usage statistics, called Telemetry which helps us improve Firefox and track regressions on a daily basis. If you are a power-user, that you want to have access to features in developments months before they become mainstream, have tolerance for occasional functional regressions and are looking for an easy way to help Mozilla and Firefox development, you should use Nightly (ideally as your main browser but you can also use it alongside Firefox on the release channel or another browser). Of course, Nightly does not have the polish, quality and stability of the Release channel as this is a work in progress but we are doing our best through automation, QA and community to provide you the best nightly builds possible. This development process used to ship a new version of Firefox every 4 weeks is called the Train Model.

Once this code matures, it is merged into stabilization repositories (Beta and Dev Edition) where that code will be polished until we reach a level of quality that allows us to ship a new final version of Firefox to hundreds of millions of people. 10.1 Regional Teams and their Nightly ChampionsĮvery day, Mozilla developers write code that is merged into a common code repository (mozilla-central) and every day that code is compiled so as to create a pre-release version of Firefox based on this code for testing purposes, this is what we call a Nightly build.9.3.3 Is there a Nightly repository for my distro?.9.3.1 Why is Nightly provided as a tar.bz2 archive? Do I have to compile it?.9.2.1 How do I install Firefox Nightly alongside Firefox Release?.9.1.1 How do I install Firefox Nightly alongside Firefox Release?.8.6 I found a bug and I want to write the patch myself!.8.5 What is the Nightly Tester Tools extension?.8.4 I want to report a website that doesn't work in Firefox.8.3 I found a bug in the 2021 redesign of Firefox!.5 My nightly build is broken and can't update to a newer nightly.3 Where can I download Firefox Nightly?.

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