Firefox Developer Edition

August 5, 2016

Version 50.0a2, first offered to Firefox Developer Edition channel users on August 5, 2016

For more information about Developer Edition please see this MDN article.


  • Improved printing by using the Reader Mode

  • New preference for allowing Ctrl+Tab to cycle through tabs in recently used order

  • Updates to keyboard shortcuts

    • Set a preference to have Ctrl+Tab cycle through tabs in recently used order
    • View a page in Reader Mode by using Ctrl+Alt+R (command+alt+r on Mac)
  • Added option to Find in page that allows users to limit search to whole words only


  • Added a built-in Emoji set for operating systems without native Emoji fonts (Windows 8.0 and lower and Linux)

All Firefox Developer Edition downloads