Firefox 19 for desktop is due to officially launch on Tuesday, with long-anticipated built-in PDF viwer, but the latest version is already available for Windows, Mac, and Linux. You can grab it now from Mozilla’s servers here: FTP.

Update on February 19: Firefox 19 launches with built-in PDF viewer on desktop, theme support and lower CPU requirements on Android

If you prefer to wait for the official launch, keep your browser pointed to Firefox.com. You may also want to check out the Mozilla blog, which will post details of the new release if it’s significant enough. If you use Firefox on your Android device, make sure to check for app updates over on the Google Play Store as a new version is likely arriving tomorrow as well.

firefox 19 You can download Firefox 19 for Windows, Mac, and Linux right now; official launch tomorrow

There’s no official Firefox 19 changelog as of yet, but the beta release notes should serve as a decent guideline:

  • NEW: Built-in PDF viewer.
  • CHANGED: Canvas elements can export their content as an image blob using canvas.toBlob().
  • CHANGED: Startup performance improvements (bugs 715402 and 756313).
  • DEVELOPER: Debugger now supports pausing on exceptions and hiding non-enumerable properties.
  • DEVELOPER: Remote Web Console is available for connecting to Firefox on Android or Firefox OS (experimental, set devtools.debugger.remote-enabled to true).
  • DEVELOPER: There is now a Browser Debugger available for add-on and browser developers (experimental, set devtools.chrome.enabled to true).
  • DEVELOPER: Web Console CSS links now open in the Style Editor.
  • HTML5: CSS @page is now supported.
  • HTML5: CSS viewport-percentage length units implemented (vh, vw, vmin and vmax).
  • HTML5: CSS text-transform now supports full-width.
  • FIXED: Starting Firefox with -private flag incorrectly claims you are not in Private Browsing mode
    (802274).

We will update you with more information (including the official changelog) when Firefox 19 officially launches. In the meantime, if you’re a Web developer, you may want to check out the Firefox 19 for developers page.

Update on February 19: Firefox 19 launches with built-in PDF viewer on desktop, theme support and lower CPU requirements on Android

Image credit: Brad Harrison