See what’s new in Firefox!

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.


Firefox Beta

November 8, 2017

Version 58.0beta, first offered to Beta channel users on November 8, 2017


  • WebVR has been enabled for Mac OS X users

  • Added Nepali (ne-NP) locale

  • Added support for form autofill for credit card

  • Optimize page load by caching JavaScript internal representation

  • Improved page render speed for Windows users with Off-Main-Thread Painting



  • Downgrading profile to previous versions is not supported. In case of downgrade, it is suggested to use a new profile


  • On Windows and Linux, Firefox crashes occasionally on Intel Broadwell-U processors with old microcode. Windows users should ensure Windows Update is set to install updates. Linux users should ensure that the distribution package for Intel microcode is installed.