14 DAY TRIAL // The twelfth beta release in the new Firefox 25.x branch has been made available for download by Mozilla for all available platforms, including Linux.
This new branch of Firefox, 25.x, has received a lot of development versions, a lot more than the average. This means that the developers from Mozilla had a lot of security work to do, besides the already known features that are expected to arrive.
As always, the binaries for Mozilla Firefox 25 Beta 12 can be downloaded and run without having to install anything.
You can also check the proposed features for this latest development branch.
Download Mozilla Firefox 25 Beta 12 for Windows Download Mozilla Firefox 25 Beta 12 for Linux Download Mozilla Firefox 25 Beta 12 for Mac OS X
Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.