Firefox 19 releasing tomorrow, but you can grab it today

http://en.wikipedia.org/wiki/Firefox

 Firefox has been fast and furiously releasing new versions, foregoing the standard dot releases and going with a "rapid release" ever since 2011. Over the past two years we've gone from version 4 all the way to version 18. The latest version, 19, is expected to be officially released tomorrow and will include the ability to view PDF files natively within the browser.

If you're impatient, you can actually download the latest release right now. As TNW reports, the binaries have already been placed on Mozilla's FTP servers and can be installed on Windows, OSX, and Linux. Although Mozilla announced back in December that they will work on a Windows 64-bit version of the browser, we will apparently have to wait until at least version 20 before that will be available.