Firefox Beta

October 20, 2020

Version 83.0beta, first offered to Beta channel users on October 20, 2020


  • A major update to Firefox JavaScript JITs engine (codenamed Warp) is now activated by default on the nightly channel and brings some nice speed improvements. If you find any issues, please file bugs blocking bug 1613592 .

  • WebRender is now activated on Intel Gen12 GPUs

  • There is now a "Print selection" context menu item.

  • Device sharing state indicator icons have been added to the system tray on Windows


  • HTTP authentication prompt dialogs are now tab-modal instead of window-modal


  • Developer Information
  • You can now click on the "scroll" badge for scrollable elements to toggle highlighting of the overflow causing elements, which also have a new "overflow" badge next to them

Web Platform

All Firefox Beta downloads