Mozilla has officially announced that the second release in the Firefox 23.x branch is now available for download on the Linux platform.The Linux binaries for Mozilla Firefox 23.0 Alpha 2 have been made available and you can download it now, without having to install anything.
The new Firefox 23 Alpha 2 (Aurora) features mixed content blocking, consolidated search default preferences, better about:memory's functional UI, and a much more.
A detailed list of changes can be found in the announcement.
Download Firefox 23.0 Alpha 2 right now from Softpedia. Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.