[[Image:Qrcode-fennec-aurora-android.png|right]]
If you want to '''test or preview Firefox 5''', you can download a build from the Aurora channel. Aurora builds for mobile use the code-name "Fennec" (a tiny desert fox). You can install a Fennec build alongside an official Firefox beta or stable release for Android.
The Aurora channel provides an early preview of the next Firefox Beta release. Although Aurora builds are more stable than our nightly development builds, they are not yet fully tested and are not the same quality as official beta or stable releases.
[[Image:Qrcode-fennec-nightly-android.png|right]]
If you are actively developing or testing Firefox features that are '''not yet released ''' to the Aurora or Beta channels, you can download a nightly build. Nightly builds are named "Fennec." You can install a Fennec build alongside an official Firefox beta or stable release.
The nightly channel is a snapshot of our very latest development work, before it is ready for widespread testing. This is our least stable update channel, and is not recommended for everyday use. Nightly builds provide a very early preview of work that will eventually be part of Firefox 6.